Exhaust sensors

21
Hi Hamish, I thought you might be interested in this little device. I think it would suit that stroker wbx you have. I bought mine from an eBay re seller in Aus for about $200. Just google Innovate motorsports and quite a few different sellers come up. The gauge is an MTX L air fuel ratio gauge. You also need a longer 18ft cable to go from the rear of the bus to the front . Got this from Rocket Industries for $70 , but have noticed some sellers offer these as well . Basically the O2 sensor replaces the stock sensor . It sends a signal to the gauge to give you a readout of the AFR. you are running. The gauge also has two programable circuits that you can use to send info (voltage) to the ecu. Different voltages mean different afr's. One circuit is ideally left so that it mimics the stock sensor' s signal and the second circuit you can program with a laptop to run a richer mixture when you need it. I got the idea of a vacuum activated switch to switch between the two circuits from Chris Corkins, the wbx builder in the US . Greg Esposito did some searching & came up with the perfect switch for this application. You'll have to extract info on that switch from him , as I don't know where he sourced it from. Hope you understand my long winded explanation . Any other questions & I 'll answer as best I can. Maybe Greg can give you a more technical explanation if he gets any free time from his young family. Eddie.

--- In Syncro_T3_Australia@yahoogroups.com, Hamish Dobson <dobson_hamish@...> wrote:
>
> Hi Eddie,
> This 'Innovate air fuel ratio gauge which comes with its own 02 sensor'.
> How can one acquire one of these?
> Additionally how did u integrate it with the Vw ecu? Can you explain in more detail how u installed it and got it working?
> Best regards
> Hamish
>
> Sent from my iPhone
>
> On 09/03/2013, at 7:48 AM, "eddie" <bergodaz@...> wrote:
>
> > Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine withMax the Machwo airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
> >
> > --- In Syncro_T3_Australia@yahoogroups.com, Scott Daniel - Turbovans <ScottDaniel@> wrote:
> >>
> >> Greetings all,
> >> re how much does an 02 sensor cost . Here in Oregon an OE style one
> >> with the right connectors could be as high as $ 90 to 130 US .
> >> An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.
> >>
> >> I suppose having a hollow cat downstream of an 02sensor could affect how
> >> it reads the exhaust ..
> >> I wouldn't think so though really ..Many waterboxer engines are running
> >> with hollowed out cats.
> >>
> >> btw ..regarding poor fuel mileage ...consider if cat ( or muffler )
> >> might be starting to fail or partially clogged.
> >> I have seen them look ok looking into both ends , but in themiddle
> >> starting to fail.
> >>
> >> yeah ..it's always a good test if it's not running right to disconnect
> >> the 02.
> >> 02 input is bypassed at wide open throttle btw.
> >> I have not seen this issue myself but I have read about shorted 02
> >> coaxial cable ..and seen one or two vans with a new wire spliced in near
> >> the ecu.
> >>
> >> re apprarent engine power ....were tiresizes about the same ? Extra big
> >> ties eat up apparent engine power.
> >>
> >> scott
> >> turbovans
> >>
> >> On 3/8/2013 5:34 AM, Ken Garratt wrote:
> >>>
> >>> Hi Philip,
> >>> It's said the engine runs rich when the Oxy sensor is disconnected or
> >>> has failed, so running the engine in that state long term may not be a
> >>> good idea.
> >>> It's said the Oxy sensor may not sense so well if the internals of the
> >>> Catalytic Converter are shot/non existent.
> >>> A useful thing to know is that if your van should ever have the
> >>> symptoms of "Vanagon Syndrome", it's worth trying disconnecting the
> >>> large green wire of the Oxy sensor leads ... this may help get you home.
> >>>
> >>> Examples of Oxy Sensor pricing from usual US suppliers, plus shipping
> >>> cost:
> >>> https://www.busdepot.com/13957
> >>> http://www.van-cafe.com/home/van_1223689737929/page_347_1217/oxygen_sensor_-_complete.html
> >>>
> >>> Cheers.
> >>> Ken
> >>>
> >>>
> >>> ------------------------------------------------------------------------
> >>> To: Syncro_T3_Australia@yahoogroups.com
> >>> CC: dobson_hamish@
> >>> From: philipmacrae@
> >>> Date: Thu, 7 Mar 2013 23:07:58 -0800
> >>> Subject: Re: [Syncro_T3_Australia] Exhaust sensors
> >>>
> >>>
> >>> Scott,
> >>> What does a new Oxygen Sensor cost these days???
> >>> I remember being told my Oxygen Sensor was exhausted so mechanic
> >>> disconnected it and the car went well disconnected for a long time.
> >>> Not Totally sure if its connected today because its in the shop
> >>> getting the ten year old penrite synthetic transmission oil changed
> >>> so I cant check.
> >>> I never replaced it.
> >>> I always check the fuel consumption as I always fill the tank.
> >>> Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler
> >>> or diflock etc. Motor is original 255,000km. purchased with 98,000km.
> >>> The VC is probably also exhausted!
> >>> Oil consumption is 1 litre per 10,000km or less depending on type of
> >>> driving ie city vs highway or dirt roads.
> >>> When I drove the car for some years without the drive shaft (so 2WD) I
> >>> think I got about 10.5lt per 100k.
> >>> Other Syncros I have driven have had better acceleration than mine.
> >>>
> >>> *From:* Scott Daniel - Turbovans <ScottDaniel@>
> >>> *To:* Syncro_T3_Australia@yahoogroups.com
> >>> *Cc:* Hamish Dobson <dobson_hamish@>
> >>> *Sent:* Wednesday, 6 March 2013 1:53 PM
> >>> *Subject:* Re: [Syncro_T3_Australia] Exhaust sensors
> >>> Imagine all the gasoline wasted in all that time by not having it
> >>> running really right.
> >>> Possibly rough on the engine having it run rich ..
> >>> like rough on the oil.
> >>> They are real easy to check for good function too ...the oxygen sensor.
> >>>
> >>>
> >>> On 3/6/2013 1:32 PM, Hamish Dobson wrote:
> >>>
> >>> Hi all I recently replaced my exhaust sensor. Was the original
> >>> that I never changed when I rebuilt my engine aprx 15000 km ago.
> >>> I was always suffering from poor low down drivability issues due
> >>> to over fueling. At traffic lights the car would bog down and and
> >>> it got hot it got worse....then other times it was fine.
> >>>
> >>> After changing it and having to splice it into the wiring the car
> >>> is like a whole new car.
> >>>
> >>> Very very pleased.
> >>>
> >>> Sent from my iPhone
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
22
Hello Eddie,
Thank you.
I am interested to know how you tie into the factory ecu with such a vacuum actuated switch and communicate to it how to enrich the air fuel mixture under load/acceleration.
Is this a question for Greg E?
Rgds
Hamish

Sent from my iPhone

On 09/03/2013, at 7:03 PM, "eddie" <bergodaz@ozemail.com.au> wrote:

> Hi Hamish, I thought you might be interested in this little device. I think it would suit that stroker wbx you have. I bought mine from an eBay re seller in Aus for about $200. Just google Innovate motorsports and quite a few different sellers come up. The gauge is an MTX L air fuel ratio gauge. You also need a longer 18ft cable to go from the rear of the bus to the front . Got this from Rocket Industries for $70 , but have noticed some sellers offer these as well . Basically the O2 sensor replaces the stock sensor . It sends a signal to the gauge to give you a readout of the AFR. you are running. The gauge also has two programable circuits that you can use to send info (voltage) to the ecu. Different voltages mean different afr's. One circuit is ideally left so that it mimics the stock sensor' s signal and the second circuit you can program with a laptop to run a richer mixture when you need it. I got the idea of a vacuum activated switch to switch between the two circuits from Chris Corkins, the wbx builder in the US . Greg Esposito did some searching & came up with the perfect switch for this application. You'll have to extract info on that switch from him , as I don't know where he sourced it from. Hope you understand my long winded explanation . Any other questions & I 'll answer as best I can. Maybe Greg can give you a more technical explanation if he gets any free time from his young family. Eddie.
>
> --- In Syncro_T3_Australia@yahoogroups.com, Hamish Dobson <dobson_hamish@...> wrote:
>>
>> Hi Eddie,
>> This 'Innovate air fuel ratio gauge which comes with its own 02 sensor'.
>> How can one acquire one of these?
>> Additionally how did u integrate it with the Vw ecu? Can you explain in more detail how u installed it and got it working?
>> Best regards
>> Hamish
>>
>> Sent from my iPhone
>>
>> On 09/03/2013, at 7:48 AM, "eddie" <bergodaz@...> wrote:
>>
>>> Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine withMax the Machwo airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
>>>
>>> --- In Syncro_T3_Australia@yahoogroups.com, Scott Daniel - Turbovans <ScottDaniel@> wrote:
>>>>
>>>> Greetings all,
>>>> re how much does an 02 sensor cost . Here in Oregon an OE style one
>>>> with the right connectors could be as high as $ 90 to 130 US .
>>>> An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.
>>>>
>>>> I suppose having a hollow cat downstream of an 02sensor could affect how
>>>> it reads the exhaust ..
>>>> I wouldn't think so though really ..Many waterboxer engines are running
>>>> with hollowed out cats.
>>>>
>>>> btw ..regarding poor fuel mileage ...consider if cat ( or muffler )
>>>> might be starting to fail or partially clogged.
>>>> I have seen them look ok looking into both ends , but in themiddle
>>>> starting to fail.
>>>>
>>>> yeah ..it's always a good test if it's not running right to disconnect
>>>> the 02.
>>>> 02 input is bypassed at wide open throttle btw.
>>>> I have not seen this issue myself but I have read about shorted 02
>>>> coaxial cable ..and seen one or two vans with a new wire spliced in near
>>>> the ecu.
>>>>
>>>> re apprarent engine power ....were tiresizes about the same ? Extra big
>>>> ties eat up apparent engine power.
>>>>
>>>> scott
>>>> turbovans
>>>>
>>>> On 3/8/2013 5:34 AM, Ken Garratt wrote:
>>>>>
>>>>> Hi Philip,
>>>>> It's said the engine runs rich when the Oxy sensor is disconnected or
>>>>> has failed, so running the engine in that state long term may not be a
>>>>> good idea.
>>>>> It's said the Oxy sensor may not sense so well if the internals of the
>>>>> Catalytic Converter are shot/non existent.
>>>>> A useful thing to know is that if your van should ever have the
>>>>> symptoms of "Vanagon Syndrome", it's worth trying disconnecting the
>>>>> large green wire of the Oxy sensor leads ... this may help get you home.
>>>>>
>>>>> Examples of Oxy Sensor pricing from usual US suppliers, plus shipping
>>>>> cost:
>>>>> https://www.busdepot.com/13957
>>>>> http://www.van-cafe.com/home/van_1223689737929/page_347_1217/oxygen_sensor_-_complete.html
>>>>>
>>>>> Cheers.
>>>>> Ken
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------
>>>>> To: Syncro_T3_Australia@yahoogroups.com
>>>>> CC: dobson_hamish@
>>>>> From: philipmacrae@
>>>>> Date: Thu, 7 Mar 2013 23:07:58 -0800
>>>>> Subject: Re: [Syncro_T3_Australia] Exhaust sensors
>>>>>
>>>>>
>>>>> Scott,
>>>>> What does a new Oxygen Sensor cost these days???
>>>>> I remember being told my Oxygen Sensor was exhausted so mechanic
>>>>> disconnected it and the car went well disconnected for a long time.
>>>>> Not Totally sure if its connected today because its in the shop
>>>>> getting the ten year old penrite synthetic transmission oil changed
>>>>> so I cant check.
>>>>> I never replaced it.
>>>>> I always check the fuel consumption as I always fill the tank.
>>>>> Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler
>>>>> or diflock etc. Motor is original 255,000km. purchased with 98,000km.
>>>>> The VC is probably also exhausted!
>>>>> Oil consumption is 1 litre per 10,000km or less depending on type of
>>>>> driving ie city vs highway or dirt roads.
>>>>> When I drove the car for some years without the drive shaft (so 2WD) I
>>>>> think I got about 10.5lt per 100k.
>>>>> Other Syncros I have driven have had better acceleration than mine.
>>>>>
>>>>> *From:* Scott Daniel - Turbovans <ScottDaniel@>
>>>>> *To:* Syncro_T3_Australia@yahoogroups.com
>>>>> *Cc:* Hamish Dobson <dobson_hamish@>
>>>>> *Sent:* Wednesday, 6 March 2013 1:53 PM
>>>>> *Subject:* Re: [Syncro_T3_Australia] Exhaust sensors
>>>>> Imagine all the gasoline wasted in all that time by not having it
>>>>> running really right.
>>>>> Possibly rough on the engine having it run rich ..
>>>>> like rough on the oil.
>>>>> They are real easy to check for good function too ...the oxygen sensor.
>>>>>
>>>>>
>>>>> On 3/6/2013 1:32 PM, Hamish Dobson wrote:
>>>>>
>>>>> Hi all I recently replaced my exhaust sensor. Was the original
>>>>> that I never changed when I rebuilt my engine aprx 15000 km ago.
>>>>> I was always suffering from poor low down drivability issues due
>>>>> to over fueling. At traffic lights the car would bog down and and
>>>>> it got hot it got worse....then other times it was fine.
>>>>>
>>>>> After changing it and having to splice it into the wiring the car
>>>>> is like a whole new car.
>>>>>
>>>>> Very very pleased.
>>>>>
>>>>> Sent from my iPhone
>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> Yahoo! Groups Links
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
23
Hamish, the info( voltage) is fed into the ECU via the wire that goes from the O2 sensor into the ECU. The gauge gets info from its own O2 sensor and then coverts it to a signal that the ECU understands. It has two of these signals coming out of it. One is left so that it runs at factory settings of 14.7:1 air fuel ratio and the other you program so to trick the ECU into running richer, about 13:1. This is where you need the vacuum switch to choose which circuit to run. Both the circuits go into it but only one comes out depending on engine load. The switch that Greg sourced is adjustable so that you can change the point where the rich circuit kicks in. I plumbed mine into the line that goes into the fuel pressure regulator. It's pretty simple . Just have to keep in mind the the stock sensor works on voltages between .1 and 1.1 volts, so that when you pragram the second circuit your voltage should remain within this range. From memory the factory settings have the second circuit at somewhere around 5 volts( could fry the ECU?)
If you buy one of these units it becomes clearer once you start reading installation instructions and also once you plug a laptop into it . It's also handy ,as a starting point , to install the gauge to understand how your system is working before trying to run richer mixtures. I started all of this because Steven Muller stressed about the high compression engine he built blowing up because of running too lean. He wanted me to be able to monitor afr's and that's when I came across this gauge, not realising the extra benefits of it at the time. Eddie.
--- In Syncro_T3_Australia@yahoogroups.com, Hamish Dobson <dobson_hamish@...> wrote:
>
> Hello Eddie,
> Thank you.
> I am interested to know how you tie into the factory ecu with such a vacuum actuated switch and communicate to it how to enrich the air fuel mixture under load/acceleration.
> Is this a question for Greg E?
> Rgds
> Hamish
>
> Sent from my iPhone
>
> On 09/03/2013, at 7:03 PM, "eddie" <bergodaz@...> wrote:
>
> > Hi Hamish, I thought you might be interested in this little device. I think it would suit that stroker wbx you have. I bought mine from an eBay re seller in Aus for about $200. Just google Innovate motorsports and quite a few different sellers come up. The gauge is an MTX L air fuel ratio gauge. You also need a longer 18ft cable to go from the rear of the bus to the front . Got this from Rocket Industries for $70 , but have noticed some sellers offer these as well . Basically the O2 sensor replaces the stock sensor . It sends a signal to the gauge to give you a readout of the AFR. you are running. The gauge also has two programable circuits that you can use to send info (voltage) to the ecu. Different voltages mean different afr's. One circuit is ideally left so that it mimics the stock sensor' s signal and the second circuit you can program with a laptop to run a richer mixture when you need it. I got the idea of a vacuum activated switch to switch between the two circuits from Chris Corkins, the wbx builder in the US . Greg Esposito did some searching & came up with the perfect switch for this application. You'll have to extract info on that switch from him , as I don't know where he sourced it from. Hope you understand my long winded explanation . Any other questions & I 'll answer as best I can. Maybe Greg can give you a more technical explanation if he gets any free time from his young family. Eddie.
> >
> > --- In Syncro_T3_Australia@yahoogroups.com, Hamish Dobson <dobson_hamish@> wrote:
> >>
> >> Hi Eddie,
> >> This 'Innovate air fuel ratio gauge which comes with its own 02 sensor'.
> >> How can one acquire one of these?
> >> Additionally how did u integrate it with the Vw ecu? Can you explain in more detail how u installed it and got it working?
> >> Best regards
> >> Hamish
> >>
> >> Sent from my iPhone
> >>
> >> On 09/03/2013, at 7:48 AM, "eddie" <bergodaz@> wrote:
> >>
> >>> Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine withMax the Machwo airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
> >>>
> >>> --- In Syncro_T3_Australia@yahoogroups.com, Scott Daniel - Turbovans <ScottDaniel@> wrote:
> >>>>
> >>>> Greetings all,
> >>>> re how much does an 02 sensor cost . Here in Oregon an OE style one
> >>>> with the right connectors could be as high as $ 90 to 130 US .
> >>>> An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.
> >>>>
> >>>> I suppose having a hollow cat downstream of an 02sensor could affect how
> >>>> it reads the exhaust ..
> >>>> I wouldn't think so though really ..Many waterboxer engines are running
> >>>> with hollowed out cats.
> >>>>
> >>>> btw ..regarding poor fuel mileage ...consider if cat ( or muffler )
> >>>> might be starting to fail or partially clogged.
> >>>> I have seen them look ok looking into both ends , but in themiddle
> >>>> starting to fail.
> >>>>
> >>>> yeah ..it's always a good test if it's not running right to disconnect
> >>>> the 02.
> >>>> 02 input is bypassed at wide open throttle btw.
> >>>> I have not seen this issue myself but I have read about shorted 02
> >>>> coaxial cable ..and seen one or two vans with a new wire spliced in near
> >>>> the ecu.
> >>>>
> >>>> re apprarent engine power ....were tiresizes about the same ? Extra big
> >>>> ties eat up apparent engine power.
> >>>>
> >>>> scott
> >>>> turbovans
> >>>>
> >>>> On 3/8/2013 5:34 AM, Ken Garratt wrote:
> >>>>>
> >>>>> Hi Philip,
> >>>>> It's said the engine runs rich when the Oxy sensor is disconnected or
> >>>>> has failed, so running the engine in that state long term may not be a
> >>>>> good idea.
> >>>>> It's said the Oxy sensor may not sense so well if the internals of the
> >>>>> Catalytic Converter are shot/non existent.
> >>>>> A useful thing to know is that if your van should ever have the
> >>>>> symptoms of "Vanagon Syndrome", it's worth trying disconnecting the
> >>>>> large green wire of the Oxy sensor leads ... this may help get you home.
> >>>>>
> >>>>> Examples of Oxy Sensor pricing from usual US suppliers, plus shipping
> >>>>> cost:
> >>>>> https://www.busdepot.com/13957
> >>>>> http://www.van-cafe.com/home/van_1223689737929/page_347_1217/oxygen_sensor_-_complete.html
> >>>>>
> >>>>> Cheers.
> >>>>> Ken
> >>>>>
> >>>>>
> >>>>> ------------------------------------------------------------------------
> >>>>> To: Syncro_T3_Australia@yahoogroups.com
> >>>>> CC: dobson_hamish@
> >>>>> From: philipmacrae@
> >>>>> Date: Thu, 7 Mar 2013 23:07:58 -0800
> >>>>> Subject: Re: [Syncro_T3_Australia] Exhaust sensors
> >>>>>
> >>>>>
> >>>>> Scott,
> >>>>> What does a new Oxygen Sensor cost these days???
> >>>>> I remember being told my Oxygen Sensor was exhausted so mechanic
> >>>>> disconnected it and the car went well disconnected for a long time.
> >>>>> Not Totally sure if its connected today because its in the shop
> >>>>> getting the ten year old penrite synthetic transmission oil changed
> >>>>> so I cant check.
> >>>>> I never replaced it.
> >>>>> I always check the fuel consumption as I always fill the tank.
> >>>>> Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler
> >>>>> or diflock etc. Motor is original 255,000km. purchased with 98,000km.
> >>>>> The VC is probably also exhausted!
> >>>>> Oil consumption is 1 litre per 10,000km or less depending on type of
> >>>>> driving ie city vs highway or dirt roads.
> >>>>> When I drove the car for some years without the drive shaft (so 2WD) I
> >>>>> think I got about 10.5lt per 100k.
> >>>>> Other Syncros I have driven have had better acceleration than mine.
> >>>>>
> >>>>> *From:* Scott Daniel - Turbovans <ScottDaniel@>
> >>>>> *To:* Syncro_T3_Australia@yahoogroups.com
> >>>>> *Cc:* Hamish Dobson <dobson_hamish@>
> >>>>> *Sent:* Wednesday, 6 March 2013 1:53 PM
> >>>>> *Subject:* Re: [Syncro_T3_Australia] Exhaust sensors
> >>>>> Imagine all the gasoline wasted in all that time by not having it
> >>>>> running really right.
> >>>>> Possibly rough on the engine having it run rich ..
> >>>>> like rough on the oil.
> >>>>> They are real easy to check for good function too ...the oxygen sensor.
> >>>>>
> >>>>>
> >>>>> On 3/6/2013 1:32 PM, Hamish Dobson wrote:
> >>>>>
> >>>>> Hi all I recently replaced my exhaust sensor. Was the original
> >>>>> that I never changed when I rebuilt my engine aprx 15000 km ago.
> >>>>> I was always suffering from poor low down drivability issues due
> >>>>> to over fueling. At traffic lights the car would bog down and and
> >>>>> it got hot it got worse....then other times it was fine.
> >>>>>
> >>>>> After changing it and having to splice it into the wiring the car
> >>>>> is like a whole new car.
> >>>>>
> >>>>> Very very pleased.
> >>>>>
> >>>>> Sent from my iPhone
> >>>
> >>>
> >>>
> >>>
> >>> ------------------------------------
> >>>
> >>> Yahoo! Groups Links
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
24
Understood.

Thank you Eddie.

FYI I found the gauges on eBay easily.

Since changing exh sensors my car (1week ago) it is running extremely well (tail pipe shows no signs of looking lean).

I shall see how things pan out as
I have just purchased a 2.8 vr6 and adapter plate and beginning a conversion. Possibly best to keep funds and my time allocated for that. Although I Wish I had heard about this a while ago.

Once again thank you Edie.
I Take it your in Australia.

Hamish.

Sent from my iPhone

On 10/03/2013, at 8:03 AM, "eddie" <bergodaz@ozemail.com.au> wrote:

> Hamish, the info( voltage) is fed into the ECU via the wire that goes from the O2 sensor into the ECU. The gauge gets info from its own O2 sensor and then coverts it to a signal that the ECU understands. It has two of these signals coming out of it. One is left so that it runs at factory settings of 14.7:1 air fuel ratio and the other you program so to trick the ECU into running richer, about 13:1. This is where you need the vacuum switch to choose which circuit to run. Both the circuits go into it but only one comes out depending on engine load. The switch that Greg sourced is adjustable so that you can change the point where the rich circuit kicks in. I plumbed mine into the line that goes into the fuel pressure regulator. It's pretty simple . Just have to keep in mind the the stock sensor works on voltages between .1 and 1.1 volts, so that when you pragram the second circuit your voltage should remain within this range. From memory the factory settings have the second circuit at somewhere around 5 volts( could fry the ECU?)
> If you buy one of these units it becomes clearer once you start reading installation instructions and also once you plug a laptop into it . It's also handy ,as a starting point , to install the gauge to understand how your system is working before trying to run richer mixtures. I started all of this because Steven Muller stressed about the high compression engine he built blowing up because of running too lean. He wanted me to be able to monitor afr's and that's when I came across this gauge, not realising the extra benefits of it at the time. Eddie.
> --- In Syncro_T3_Australia@yahoogroups.com, Hamish Dobson <dobson_hamish@...> wrote:
>>
>> Hello Eddie,
>> Thank you.
>> I am interested to know how you tie into the factory ecu with such a vacuum actuated switch and communicate to it how to enrich the air fuel mixture under load/acceleration.
>> Is this a question for Greg E?
>> Rgds
>> Hamish
>>
>> Sent from my iPhone
>>
>> On 09/03/2013, at 7:03 PM, "eddie" <bergodaz@...> wrote:
>>
>>> Hi Hamish, I thought you might be interested in this little device. I think it would suit that stroker wbx you have. I bought mine from an eBay re seller in Aus for about $200. Just google Innovate motorsports and quite a few different sellers come up. The gauge is an MTX L air fuel ratio gauge. You also need a longer 18ft cable to go from the rear of the bus to the front . Got this from Rocket Industries for $70 , but have noticed some sellers offer these as well . Basically the O2 sensor replaces the stock sensor . It sends a signal to the gauge to give you a readout of the AFR. you are running. The gauge also has two programable circuits that you can use to send info (voltage) to the ecu. Different voltages mean different afr's. One circuit is ideally left so that it mimics the stock sensor' s signal and the second circuit you can program with a laptop to run a richer mixture when you need it. I got the idea of a vacuum activated switch to switch between the two circuits from Chris Corkins, the wbx builder in the US . Greg Esposito did some searching & came up with the perfect switch for this application. You'll have to extract info on that switch from him , as I don't know where he sourced it from. Hope you understand my long winded explanation . Any other questions & I 'll answer as best I can. Maybe Greg can give you a more technical explanation if he gets any free time from his young family. Eddie.
>>>
>>> --- In Syncro_T3_Australia@yahoogroups.com, Hamish Dobson <dobson_hamish@> wrote:
>>>>
>>>> Hi Eddie,
>>>> This 'Innovate air fuel ratio gauge which comes with its own 02 sensor'.
>>>> How can one acquire one of these?
>>>> Additionally how did u integrate it with the Vw ecu? Can you explain in more detail how u installed it and got it working?
>>>> Best regards
>>>> Hamish
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On 09/03/2013, at 7:48 AM, "eddie" <bergodaz@> wrote:
>>>>
>>>>> Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine withMax the Machwo airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
>>>>>
>>>>> --- In Syncro_T3_Australia@yahoogroups.com, Scott Daniel - Turbovans <ScottDaniel@> wrote:
>>>>>>
>>>>>> Greetings all,
>>>>>> re how much does an 02 sensor cost . Here in Oregon an OE style one
>>>>>> with the right connectors could be as high as $ 90 to 130 US .
>>>>>> An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.
>>>>>>
>>>>>> I suppose having a hollow cat downstream of an 02sensor could affect how
>>>>>> it reads the exhaust ..
>>>>>> I wouldn't think so though really ..Many waterboxer engines are running
>>>>>> with hollowed out cats.
>>>>>>
>>>>>> btw ..regarding poor fuel mileage ...consider if cat ( or muffler )
>>>>>> might be starting to fail or partially clogged.
>>>>>> I have seen them look ok looking into both ends , but in themiddle
>>>>>> starting to fail.
>>>>>>
>>>>>> yeah ..it's always a good test if it's not running right to disconnect
>>>>>> the 02.
>>>>>> 02 input is bypassed at wide open throttle btw.
>>>>>> I have not seen this issue myself but I have read about shorted 02
>>>>>> coaxial cable ..and seen one or two vans with a new wire spliced in near
>>>>>> the ecu.
>>>>>>
>>>>>> re apprarent engine power ....were tiresizes about the same ? Extra big
>>>>>> ties eat up apparent engine power.
>>>>>>
>>>>>> scott
>>>>>> turbovans
>>>>>>
>>>>>> On 3/8/2013 5:34 AM, Ken Garratt wrote:
>>>>>>>
>>>>>>> Hi Philip,
>>>>>>> It's said the engine runs rich when the Oxy sensor is disconnected or
>>>>>>> has failed, so running the engine in that state long term may not be a
>>>>>>> good idea.
>>>>>>> It's said the Oxy sensor may not sense so well if the internals of the
>>>>>>> Catalytic Converter are shot/non existent.
>>>>>>> A useful thing to know is that if your van should ever have the
>>>>>>> symptoms of "Vanagon Syndrome", it's worth trying disconnecting the
>>>>>>> large green wire of the Oxy sensor leads ... this may help get you home.
>>>>>>>
>>>>>>> Examples of Oxy Sensor pricing from usual US suppliers, plus shipping
>>>>>>> cost:
>>>>>>> https://www.busdepot.com/13957
>>>>>>> http://www.van-cafe.com/home/van_1223689737929/page_347_1217/oxygen_sensor_-_complete.html
>>>>>>>
>>>>>>> Cheers.
>>>>>>> Ken
>>>>>>>
>>>>>>>
>>>>>>> ------------------------------------------------------------------------
>>>>>>> To: Syncro_T3_Australia@yahoogroups.com
>>>>>>> CC: dobson_hamish@
>>>>>>> From: philipmacrae@
>>>>>>> Date: Thu, 7 Mar 2013 23:07:58 -0800
>>>>>>> Subject: Re: [Syncro_T3_Australia] Exhaust sensors
>>>>>>>
>>>>>>>
>>>>>>> Scott,
>>>>>>> What does a new Oxygen Sensor cost these days???
>>>>>>> I remember being told my Oxygen Sensor was exhausted so mechanic
>>>>>>> disconnected it and the car went well disconnected for a long time.
>>>>>>> Not Totally sure if its connected today because its in the shop
>>>>>>> getting the ten year old penrite synthetic transmission oil changed
>>>>>>> so I cant check.
>>>>>>> I never replaced it.
>>>>>>> I always check the fuel consumption as I always fill the tank.
>>>>>>> Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler
>>>>>>> or diflock etc. Motor is original 255,000km. purchased with 98,000km.
>>>>>>> The VC is probably also exhausted!
>>>>>>> Oil consumption is 1 litre per 10,000km or less depending on type of
>>>>>>> driving ie city vs highway or dirt roads.
>>>>>>> When I drove the car for some years without the drive shaft (so 2WD) I
>>>>>>> think I got about 10.5lt per 100k.
>>>>>>> Other Syncros I have driven have had better acceleration than mine.
>>>>>>>
>>>>>>> *From:* Scott Daniel - Turbovans <ScottDaniel@>
>>>>>>> *To:* Syncro_T3_Australia@yahoogroups.com
>>>>>>> *Cc:* Hamish Dobson <dobson_hamish@>
>>>>>>> *Sent:* Wednesday, 6 March 2013 1:53 PM
>>>>>>> *Subject:* Re: [Syncro_T3_Australia] Exhaust sensors
>>>>>>> Imagine all the gasoline wasted in all that time by not having it
>>>>>>> running really right.
>>>>>>> Possibly rough on the engine having it run rich ..
>>>>>>> like rough on the oil.
>>>>>>> They are real easy to check for good function too ...the oxygen sensor.
>>>>>>>
>>>>>>>
>>>>>>> On 3/6/2013 1:32 PM, Hamish Dobson wrote:
>>>>>>>
>>>>>>> Hi all I recently replaced my exhaust sensor. Was the original
>>>>>>> that I never changed when I rebuilt my engine aprx 15000 km ago.
>>>>>>> I was always suffering from poor low down drivability issues due
>>>>>>> to over fueling. At traffic lights the car would bog down and and
>>>>>>> it got hot it got worse....then other times it was fine.
>>>>>>>
>>>>>>> After changing it and having to splice it into the wiring the car
>>>>>>> is like a whole new car.
>>>>>>>
>>>>>>> Very very pleased.
>>>>>>>
>>>>>>> Sent from my iPhone
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------
>>>>>
>>>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> Yahoo! Groups Links
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
25
Hi Eddie,

where do we find this system and do I need to be a rocket scientist to instal and get to run properly ?

Mark

--- In Syncro_T3_Australia@yahoogroups.com, "eddie" <bergodaz@...> wrote:
>
> Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine with the two airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
26
Mark, got mine from eBay , although there seems to be quite a few other sellers now. Don't have to be a rocket scientist . Just have a basic understanding of engine electrics . Eddie.

--- In Syncro_T3_Australia@yahoogroups.com, "mark" <m.mullet@...> wrote:
>
> Hi Eddie,
>
> where do we find this system and do I need to be a rocket scientist to instal and get to run properly ?
>
> Mark
>
> --- In Syncro_T3_Australia@yahoogroups.com, "eddie" <bergodaz@> wrote:
> >
> > Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine with the two airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
>
27
Hamish and any others interested in this mod, I have added photos of the vacuum switch set up to my file. http://groups.yahoo.com/group/Syncro_T3_Australia/photos/album/1066122683/pic/list?mode=tn&order=ordinal&start=21&count=20&dir=asc
 
Basically the green O2 input wire of the computer goes to the common terminal of the switch. The  normally open terminal goes to your 14.7ish output and the NC terminal goes to you rich 12.8ish output. The vacuum switch is adjusted to about 5 inches of mercury. The switch is an Air Trol F4300 X30. I cut and lengthened the loom of the mtx using trailer 5 or 7 core.  I also ran 7 core from the dash to the engine bay for this project and others.
 
Re the vr6 conversion, are you aware how low the sump sits? How many kms on the engine? Did you here it running? Greg E
From: Hamish Dobson <dobson_hamish@yahoo.com.au>
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Sent: Sunday, 10 March 2013 9:31 AM
Subject: Re: [Syncro_T3_Australia] Re: Exhaust sensors
 
Understood.

Thank you Eddie.

FYI I found the gauges on eBay easily.

Since changing exh sensors my car (1week ago) it is running extremely well (tail pipe shows no signs of looking lean).

I shall see how things pan out as
I have just purchased a 2.8 vr6 and adapter plate and beginning a conversion. Possibly best to keep funds and my time allocated for that. Although I Wish I had heard about this a while ago.

Once again thank you Edie.
I Take it your in Australia.

Hamish.

Sent from my iPhone

On 10/03/2013, at 8:03 AM, "eddie" <mailto:bergodaz%40ozemail.com.au> wrote:

> Hamish, the info( voltage) is fed into the ECU via the wire that goes from the O2 sensor into the ECU. The gauge gets info from its own O2 sensor and then coverts it to a signal that the ECU understands. It has two of these signals coming out of it. One is left so that it runs at factory settings of 14.7:1 air fuel ratio and the other you program so to trick the ECU into running richer, about 13:1. This is where you need the vacuum switch to choose which circuit to run. Both the circuits go into it but only one comes out depending on engine load. The switch that Greg sourced is adjustable so that you can change the point where the rich circuit kicks in. I plumbed mine into the line that goes into the fuel pressure regulator. It's pretty simple . Just have to keep in mind the the stock sensor works on voltages between .1 and 1.1 volts, so that when you pragram the second circuit your voltage should remain within this range. From memory the factory settings have the second circuit at somewhere around 5 volts( could fry the ECU?)
> If you buy one of these units it becomes clearer once you start reading installation instructions and also once you plug a laptop into it . It's also handy ,as a starting point , to install the gauge to understand how your system is working before trying to run richer mixtures. I started all of this because Steven Muller stressed about the high compression engine he built blowing up because of running too lean. He wanted me to be able to monitor afr's and that's when I came across this gauge, not realising the extra benefits of it at the time. Eddie.
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, Hamish Dobson <dobson_hamish@...> wrote:
>>
>> Hello Eddie,
>> Thank you.
>> I am interested to know how you tie into the factory ecu with such a vacuum actuated switch and communicate to it how to enrich the air fuel mixture under load/acceleration.
>> Is this a question for Greg E?
>> Rgds
>> Hamish
>>
>> Sent from my iPhone
>>
>> On 09/03/2013, at 7:03 PM, "eddie" <bergodaz@...> wrote:
>>
>>> Hi Hamish, I thought you might be interested in this little device. I think it would suit that stroker wbx you have. I bought mine from an eBay re seller in Aus for about $200. Just google Innovate motorsports and quite a few different sellers come up. The gauge is an MTX L air fuel ratio gauge. You also need a longer 18ft cable to go from the rear of the bus to the front . Got this from Rocket Industries for $70 , but have noticed some sellers offer these as well . Basically the O2 sensor replaces the stock sensor . It sends a signal to the gauge to give you a readout of the AFR. you are running. The gauge also has two programable circuits that you can use to send info (voltage) to the ecu. Different voltages mean different afr's. One circuit is ideally left so that it mimics the stock sensor' s signal and the second circuit you can program with a laptop to run a richer mixture when you need it. I got the idea of a vacuum activated switch to switch between the two circuits from Chris Corkins, the wbx builder in the US . Greg Esposito did some searching & came up with the perfect switch for this application. You'll have to extract info on that switch from him , as I don't know where he sourced it from. Hope you understand my long winded explanation . Any other questions & I 'll answer as best I can. Maybe Greg can give you a more technical explanation if he gets any free time from his young family. Eddie.
>>>
>>> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, Hamish Dobson <dobson_hamish@> wrote:
>>>>
>>>> Hi Eddie,
>>>> This 'Innovate air fuel ratio gauge which comes with its own 02 sensor'.
>>>> How can one acquire one of these?
>>>> Additionally how did u integrate it with the Vw ecu? Can you explain in more detail how u installed it and got it working?
>>>> Best regards
>>>> Hamish
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On 09/03/2013, at 7:48 AM, "eddie" <bergodaz@> wrote:
>>>>
>>>>> Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine withMax the Machwo airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
>>>>>
>>>>> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, Scott Daniel - Turbovans <ScottDaniel@> wrote:
>>>>>>
>>>>>> Greetings all,
>>>>>> re how much does an 02 sensor cost . Here in Oregon an OE style one
>>>>>> with the right connectors could be as high as $ 90 to 130 US .
>>>>>> An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.
>>>>>>
>>>>>> I suppose having a hollow cat downstream of an 02sensor could affect how
>>>>>> it reads the exhaust ..
>>>>>> I wouldn't think so though really ..Many waterboxer engines are running
>>>>>> with hollowed out cats.
>>>>>>
>>>>>> btw ..regarding poor fuel mileage ...consider if cat ( or muffler )
>>>>>> might be starting to fail or partially clogged.
>>>>>> I have seen them look ok looking into both ends , but in themiddle
>>>>>> starting to fail.
>>>>>>
>>>>>> yeah ..it's always a good test if it's not running right to disconnect
>>>>>> the 02.
>>>>>> 02 input is bypassed at wide open throttle btw.
>>>>>> I have not seen this issue myself but I have read about shorted 02
>>>>>> coaxial cable ..and seen one or two vans with a new wire spliced in near
>>>>>> the ecu.
>>>>>>
>>>>>> re apprarent engine power ....were tiresizes about the same ? Extra big
>>>>>> ties eat up apparent engine power.
>>>>>>
>>>>>> scott
>>>>>> turbovans
>>>>>>
>>>>>> On 3/8/2013 5:34 AM, Ken Garratt wrote:
>>>>>>>
>>>>>>> Hi Philip,
>>>>>>> It's said the engine runs rich when the Oxy sensor is disconnected or
>>>>>>> has failed, so running the engine in that state long term may not be a
>>>>>>> good idea.
>>>>>>> It's said the Oxy sensor may not sense so well if the internals of the
>>>>>>> Catalytic Converter are shot/non existent.
>>>>>>> A useful thing to know is that if your van should ever have the
>>>>>>> symptoms of "Vanagon Syndrome", it's worth trying disconnecting the
>>>>>>> large green wire of the Oxy sensor leads ... this may help get you home.
>>>>>>>
>>>>>>> Examples of Oxy Sensor pricing from usual US suppliers, plus shipping
>>>>>>> cost:
>>>>>>> https://www.busdepot.com/13957http://www.van-cafe.com/home/van_1223689737929/page_347_1217/oxygen_sensor_-_complete.html
>>>>>>>
>>>>>>> Cheers.
>>>>>>> Ken
>>>>>>>
>>>>>>>
>>>>>>> ----------------------------------------------------------
>>>>>>> To: mailto:Syncro_T3_Australia%40yahoogroups.com
>>>>>>> CC: dobson_hamish@
>>>>>>> From: philipmacrae@
>>>>>>> Date: Thu, 7 Mar 2013 23:07:58 -0800
>>>>>>> Subject: Re: [Syncro_T3_Australia] Exhaust sensors
>>>>>>>
>>>>>>>
>>>>>>> Scott,
>>>>>>> What does a new Oxygen Sensor cost these days???
>>>>>>> I remember being told my Oxygen Sensor was exhausted so mechanic
>>>>>>> disconnected it and the car went well disconnected for a long time.
>>>>>>> Not Totally sure if its connected today because its in the shop
>>>>>>> getting the ten year old penrite synthetic transmission oil changed
>>>>>>> so I cant check.
>>>>>>> I never replaced it.
>>>>>>> I always check the fuel consumption as I always fill the tank.
>>>>>>> Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler
>>>>>>> or diflock etc. Motor is original 255,000km. purchased with 98,000km.
>>>>>>> The VC is probably also exhausted!
>>>>>>> Oil consumption is 1 litre per 10,000km or less depending on type of
>>>>>>> driving ie city vs highway or dirt roads.
>>>>>>> When I drove the car for some years without the drive shaft (so 2WD) I
>>>>>>> think I got about 10.5lt per 100k.
>>>>>>> Other Syncros I have driven have had better acceleration than mine.
>>>>>>>
>>>>>>> *From:* Scott Daniel - Turbovans <ScottDaniel@>
>>>>>>> *To:* mailto:Syncro_T3_Australia%40yahoogroups.com
>>>>>>> *Cc:* Hamish Dobson <dobson_hamish@>
>>>>>>> *Sent:* Wednesday, 6 March 2013 1:53 PM
>>>>>>> *Subject:* Re: [Syncro_T3_Australia] Exhaust sensors
>>>>>>> Imagine all the gasoline wasted in all that time by not having it
>>>>>>> running really right.
>>>>>>> Possibly rough on the engine having it run rich ..
>>>>>>> like rough on the oil.
>>>>>>> They are real easy to check for good function too ...the oxygen sensor.
>>>>>>>
>>>>>>>
>>>>>>> On 3/6/2013 1:32 PM, Hamish Dobson wrote:
>>>>>>>
>>>>>>> Hi all I recently replaced my exhaust sensor. Was the original
>>>>>>> that I never changed when I rebuilt my engine aprx 15000 km ago.
>>>>>>> I was always suffering from poor low down drivability issues due
>>>>>>> to over fueling. At traffic lights the car would bog down and and
>>>>>>> it got hot it got worse....then other times it was fine.
>>>>>>>
>>>>>>> After changing it and having to splice it into the wiring the car
>>>>>>> is like a whole new car.
>>>>>>>
>>>>>>> Very very pleased.
>>>>>>>
>>>>>>> Sent from my iPhone
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------
>>>>>
>>>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> Yahoo! Groups Links
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
28
Thanks Greg!
Most appreciated!
Thanks for keeping the syncros alive!

Sent from my iPhone

On 10/03/2013, at 8:53 PM, greg esposito <gregespo73@yahoo.com> wrote:

Hamish and any others interested in this mod, I have added photos of the vacuum switch set up to my file. http://groups.yahoo.com/group/Syncro_T3_Australia/photos/album/1066122683/pic/list?mode=tn&order=ordinal&start=21&count=20&dir=asc
 
Basically the green O2 input wire of the computer goes to the common terminal of the switch. The  normally open terminal goes to your 14.7ish output and the NC terminal goes to you rich 12.8ish output. The vacuum switch is adjusted to about 5 inches of mercury. The switch is an Air Trol F4300 X30. I cut and lengthened the loom of the mtx using trailer 5 or 7 core.  I also ran 7 core from the dash to the engine bay for this project and others.
 
Re the vr6 conversion, are you aware how low the sump sits? How many kms on the engine? Did you here it running? Greg E
From: Hamish Dobson <dobson_hamish@yahoo.com.au>
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Sent: Sunday, 10 March 2013 9:31 AM
Subject: Re: [Syncro_T3_Australia] Re: Exhaust sensors
 
Understood.

Thank you Eddie.

FYI I found the gauges on eBay easily.

Since changing exh sensors my car (1week ago) it is running extremely well (tail pipe shows no signs of looking lean).

I shall see how things pan out as
I have just purchased a 2.8 vr6 and adapter plate and beginning a conversion. Possibly best to keep funds and my time allocated for that. Although I Wish I had heard about this a while ago.

Once again thank you Edie.
I Take it your in Australia.

Hamish.

Sent from my iPhone

On 10/03/2013, at 8:03 AM, "eddie" <mailto:bergodaz%40ozemail.com.au> wrote:

> Hamish, the info( voltage) is fed into the ECU via the wire that goes from the O2 sensor into the ECU. The gauge gets info from its own O2 sensor and then coverts it to a signal that the ECU understands. It has two of these signals coming out of it. One is left so that it runs at factory settings of 14.7:1 air fuel ratio and the other you program so to trick the ECU into running richer, about 13:1. This is where you need the vacuum switch to choose which circuit to run. Both the circuits go into it but only one comes out depending on engine load. The switch that Greg sourced is adjustable so that you can change the point where the rich circuit kicks in. I plumbed mine into the line that goes into the fuel pressure regulator. It's pretty simple . Just have to keep in mind the the stock sensor works on voltages between .1 and 1.1 volts, so that when you pragram the second circuit your voltage should remain within this range. From memory the factory settings have the second circuit at somewhere around 5 volts( could fry the ECU?)
> If you buy one of these units it becomes clearer once you start reading installation instructions and also once you plug a laptop into it . It's also handy ,as a starting point , to install the gauge to understand how your system is working before trying to run richer mixtures. I started all of this because Steven Muller stressed about the high compression engine he built blowing up because of running too lean. He wanted me to be able to monitor afr's and that's when I came across this gauge, not realising the extra benefits of it at the time. Eddie.
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, Hamish Dobson <dobson_hamish@...> wrote:
>>
>> Hello Eddie,
>> Thank you.
>> I am interested to know how you tie into the factory ecu with such a vacuum actuated switch and communicate to it how to enrich the air fuel mixture under load/acceleration.
>> Is this a question for Greg E?
>> Rgds
>> Hamish
>>
>> Sent from my iPhone
>>
>> On 09/03/2013, at 7:03 PM, "eddie" <bergodaz@...> wrote:
>>
>>> Hi Hamish, I thought you might be interested in this little device. I think it would suit that stroker wbx you have. I bought mine from an eBay re seller in Aus for about $200. Just google Innovate motorsports and quite a few different sellers come up. The gauge is an MTX L air fuel ratio gauge. You also need a longer 18ft cable to go from the rear of the bus to the front . Got this from Rocket Industries for $70 , but have noticed some sellers offer these as well . Basically the O2 sensor replaces the stock sensor . It sends a signal to the gauge to give you a readout of the AFR. you are running. The gauge also has two programable circuits that you can use to send info (voltage) to the ecu. Different voltages mean different afr's. One circuit is ideally left so that it mimics the stock sensor' s signal and the second circuit you can program with a laptop to run a richer mixture when you need it. I got the idea of a vacuum activated switch to switch between the two circuits from Chris Corkins, the wbx builder in the US . Greg Esposito did some searching & came up with the perfect switch for this application. You'll have to extract info on that switch from him , as I don't know where he sourced it from. Hope you understand my long winded explanation . Any other questions & I 'll answer as best I can. Maybe Greg can give you a more technical explanation if he gets any free time from his young family. Eddie.
>>>
>>> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, Hamish Dobson <dobson_hamish@> wrote:
>>>>
>>>> Hi Eddie,
>>>> This 'Innovate air fuel ratio gauge which comes with its own 02 sensor'.
>>>> How can one acquire one of these?
>>>> Additionally how did u integrate it with the Vw ecu? Can you explain in more detail how u installed it and got it working?
>>>> Best regards
>>>> Hamish
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On 09/03/2013, at 7:48 AM, "eddie" <bergodaz@> wrote:
>>>>
>>>>> Or for an extra 100 bucks get yourself an Innovate air fuel ratio gauge which comes with its own 02 sensor. Been running mine withMax the Machwo airfuel ratios I programmed into itfor nearly a year now ( about 20000k's) and its running great. Runs nice and rich when I put my foot down and lean when I'm cruizing. The stock 02 sensor can't give you that.
>>>>>
>>>>> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, Scott Daniel - Turbovans <ScottDaniel@> wrote:
>>>>>>
>>>>>> Greetings all,
>>>>>> re how much does an 02 sensor cost . Here in Oregon an OE style one
>>>>>> with the right connectors could be as high as $ 90 to 130 US .
>>>>>> An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.
>>>>>>
>>>>>> I suppose having a hollow cat downstream of an 02sensor could affect how
>>>>>> it reads the exhaust ..
>>>>>> I wouldn't think so though really ..Many waterboxer engines are running
>>>>>> with hollowed out cats.
>>>>>>
>>>>>> btw ..regarding poor fuel mileage ...consider if cat ( or muffler )
>>>>>> might be starting to fail or partially clogged.
>>>>>> I have seen them look ok looking into both ends , but in themiddle
>>>>>> starting to fail.
>>>>>>
>>>>>> yeah ..it's always a good test if it's not running right to disconnect
>>>>>> the 02.
>>>>>> 02 input is bypassed at wide open throttle btw.
>>>>>> I have not seen this issue myself but I have read about shorted 02
>>>>>> coaxial cable ..and seen one or two vans with a new wire spliced in near
>>>>>> the ecu.
>>>>>>
>>>>>> re apprarent engine power ....were tiresizes about the same ? Extra big
>>>>>> ties eat up apparent engine power.
>>>>>>
>>>>>> scott
>>>>>> turbovans
>>>>>>
>>>>>> On 3/8/2013 5:34 AM, Ken Garratt wrote:
>>>>>>>
>>>>>>> Hi Philip,
>>>>>>> It's said the engine runs rich when the Oxy sensor is disconnected or
>>>>>>> has failed, so running the engine in that state long term may not be a
>>>>>>> good idea.
>>>>>>> It's said the Oxy sensor may not sense so well if the internals of the
>>>>>>> Catalytic Converter are shot/non existent.
>>>>>>> A useful thing to know is that if your van should ever have the
>>>>>>> symptoms of "Vanagon Syndrome", it's worth trying disconnecting the
>>>>>>> large green wire of the Oxy sensor leads ... this may help get you home.
>>>>>>>
>>>>>>> Examples of Oxy Sensor pricing from usual US suppliers, plus shipping
>>>>>>> cost:
>>>>>>> https://www.busdepot.com/13957http://www.van-cafe.com/home/van_1223689737929/page_347_1217/oxygen_sensor_-_complete.html
>>>>>>>
>>>>>>> Cheers.
>>>>>>> Ken
>>>>>>>
>>>>>>>
>>>>>>> ----------------------------------------------------------
>>>>>>> To: mailto:Syncro_T3_Australia%40yahoogroups.com
>>>>>>> CC: dobson_hamish@
>>>>>>> From: philipmacrae@
>>>>>>> Date: Thu, 7 Mar 2013 23:07:58 -0800
>>>>>>> Subject: Re: [Syncro_T3_Australia] Exhaust sensors
>>>>>>>
>>>>>>>
>>>>>>> Scott,
>>>>>>> What does a new Oxygen Sensor cost these days???
>>>>>>> I remember being told my Oxygen Sensor was exhausted so mechanic
>>>>>>> disconnected it and the car went well disconnected for a long time.
>>>>>>> Not Totally sure if its connected today because its in the shop
>>>>>>> getting the ten year old penrite synthetic transmission oil changed
>>>>>>> so I cant check.
>>>>>>> I never replaced it.
>>>>>>> I always check the fuel consumption as I always fill the tank.
>>>>>>> Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler
>>>>>>> or diflock etc. Motor is original 255,000km. purchased with 98,000km.
>>>>>>> The VC is probably also exhausted!
>>>>>>> Oil consumption is 1 litre per 10,000km or less depending on type of
>>>>>>> driving ie city vs highway or dirt roads.
>>>>>>> When I drove the car for some years without the drive shaft (so 2WD) I
>>>>>>> think I got about 10.5lt per 100k.
>>>>>>> Other Syncros I have driven have had better acceleration than mine.
>>>>>>>
>>>>>>> *From:* Scott Daniel - Turbovans <ScottDaniel@>
>>>>>>> *To:* mailto:Syncro_T3_Australia%40yahoogroups.com
>>>>>>> *Cc:* Hamish Dobson <dobson_hamish@>
>>>>>>> *Sent:* Wednesday, 6 March 2013 1:53 PM
>>>>>>> *Subject:* Re: [Syncro_T3_Australia] Exhaust sensors
>>>>>>> Imagine all the gasoline wasted in all that time by not having it
>>>>>>> running really right.
>>>>>>> Possibly rough on the engine having it run rich ..
>>>>>>> like rough on the oil.
>>>>>>> They are real easy to check for good function too ...the oxygen sensor.
>>>>>>>
>>>>>>>
>>>>>>> On 3/6/2013 1:32 PM, Hamish Dobson wrote:
>>>>>>>
>>>>>>> Hi all I recently replaced my exhaust sensor. Was the original
>>>>>>> that I never changed when I rebuilt my engine aprx 15000 km ago.
>>>>>>> I was always suffering from poor low down drivability issues due
>>>>>>> to over fueling. At traffic lights the car would bog down and and
>>>>>>> it got hot it got worse....then other times it was fine.
>>>>>>>
>>>>>>> After changing it and having to splice it into the wiring the car
>>>>>>> is like a whole new car.
>>>>>>>
>>>>>>> Very very pleased.
>>>>>>>
>>>>>>> Sent from my iPhone
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------
>>>>>
>>>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> Yahoo! Groups Links
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
29
Thanks Scott,
 
My sensor IS connected. Thanks for your knowledgeable reply.
 
I was talking to someone here (in Byron Bay Australia) who had recently returned from a holiday in the US and hired a Kombi and travelled down the west coast US.
 
I didnt get his details so was wondering if you know the company or people who hire VW campers?
 
I lived in Iowa for 3years and washington DC for a year so would like to see the other side some time.
 
Thanks
Philip
 
 
 

From: Scott Daniel - Turbovans <ScottDaniel@turbovans.com>
To: Syncro_T3_Australia@yahoogroups.com
Cc: Ken Garratt <unclekenz@hotmail.com>
Sent: Friday, 8 March 2013 11:15 AM
Subject: Re: [Syncro_T3_Australia] Exhaust sensors
 
Greetings all,
re how much does an 02 sensor cost .  Here in Oregon an OE style one with the right connectors could be as high as $ 90 to 130 US . 
An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.

I suppose having a hollow cat downstream of an 02 sensor could affect how it reads the exhaust ..
I wouldn't think so though really ..Many waterboxer engines are running with hollowed out cats.

btw ..regarding poor fuel mileage ...consider if cat ( or muffler ) might be starting to fail or partially clogged.
I have seen them look ok looking into both ends , but in the middle starting to fail.

yeah ..it's always a good test if it's not running right to disconnect the 02.  
02 input is bypassed at wide open throttle btw. 
I have not seen this issue myself but I have read about shorted 02 coaxial cable ..and seen one or two vans with a new wire spliced in near the ecu.

re apprarent engine power ....were tire sizes about the same ?  Extra big ties eat up apparent engine power.

scott
turbovans

On 3/8/2013 5:34 AM, Ken Garratt wrote:
 
Hi Philip,
It's said the engine runs rich when the Oxy sensor is disconnected or has failed, so running the engine in that state long term may not be a good idea.
It's said the Oxy sensor may not sense so well if the internals of the Catalytic Converter are shot/non existent.
A useful thing to know is that if your van should ever have the symptoms of "Vanagon Syndrome", it's worth trying disconnecting the large green wire of the Oxy sensor leads ... this may help get you home.

Examples of Oxy Sensor pricing from usual US suppliers, plus shipping cost:

Cheers.
Ken
To: Syncro_T3_Australia@yahoogroups.com CC: dobson_hamish@yahoo.com.au From: philipmacrae@yahoo.com.au Date: Thu, 7 Mar 2013 23:07:58 -0800 Subject: Re: [Syncro_T3_Australia] Exhaust sensors 
Scott,
 
What does a new Oxygen Sensor cost these days???
 
I remember being told my Oxygen Sensor was exhausted so mechanic disconnected it and the car went well disconnected for a long time.
 
Not Totally sure if its connected today because its in the shop getting the ten year old penrite synthetic transmission oil changed so I cant check.
 
I never replaced it.
 
I always check the fuel consumption as I always fill the tank.
 
Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler or diflock etc. Motor is original 255,000km. purchased with 98,000km. The VC is probably also exhausted!
 
Oil consumption is 1 litre per 10,000km or less depending on type of driving ie city vs highway or dirt roads.
 
When I drove the car for some years without the drive shaft (so 2WD) I think I got about 10.5lt per 100k.
 
Other Syncros I have driven have had better acceleration than mine.
 
 
 

From: Scott Daniel - Turbovans mailto:ScottDaniel@turbovans.com
To: Syncro_T3_Australia@yahoogroups.com
Cc: Hamish Dobson mailto:dobson_hamish@yahoo.com.au
Sent: Wednesday, 6 March 2013 1:53 PM
Subject: Re: [Syncro_T3_Australia] Exhaust sensors
 
Imagine all the gasoline wasted in all that time by not having it running really right.
Possibly rough on the engine  having it run rich ..
like rough on the oil.
They are real easy to check for good function too ...the oxygen sensor.


On 3/6/2013 1:32 PM, Hamish Dobson wrote:
 
Hi all I recently replaced my exhaust sensor. Was the original that I never changed when I rebuilt my engine aprx 15000 km ago. I was always suffering from poor low down drivability issues due to over fueling. At traffic lights the car would bog down and and it got hot it got worse....then other times it was fine. After changing it and having to splice it into the wiring the car is like a whole new car. Very very pleased. Sent from my iPhone
30
Hello Philip.
yes, you should see the West Coast of the US sometime..
'the west is the best.' < from a Doors song if you are into that sort of thing ) ..

it's true though.
Can't say I can think of any companies that rent VW campers on Mainland USA here..
easy to google though.

There are places like Yosemite National Park , and many others that are a 'must see.'
cheers,
Scott

On 3/24/2013 8:10 PM, Philip Macrae wrote:
Thanks Scott,
My sensor IS connected. Thanks for your knowledgeable reply.
I was talking to someone here (in Byron Bay Australia) who had recently returned from a holiday in the US and hired a Kombi and travelled down the west coast US.
I didnt get his details so was wondering if you know the company or people who hire VW campers?
I lived in Iowa for 3years and washington DC for a year so would like to see the other side some time.
Thanks
Philip

From: Scott Daniel - Turbovans <ScottDaniel@turbovans.com>
To: Syncro_T3_Australia@yahoogroups.com
Cc: Ken Garratt <unclekenz@hotmail.com>
Sent: Friday, 8 March 2013 11:15 AM
Subject: Re: [Syncro_T3_Australia] Exhaust sensors
Greetings all,
re how much does an 02 sensor cost . Here in Oregon an OE style one with the right connectors could be as high as $ 90 to 130 US .
An aftermarket generic Bosch one that you splice in might be $ 60 to 70 US.

I suppose having a hollow cat downstream of an 02 sensor could affect how it reads the exhaust ..
I wouldn't think so though really ..Many waterboxer engines are running with hollowed out cats.

btw ..regarding poor fuel mileage ...consider if cat ( or muffler ) might be starting to fail or partially clogged.
I have seen them look ok looking into both ends , but in the middle starting to fail.

yeah ..it's always a good test if it's not running right to disconnect the 02.
02 input is bypassed at wide open throttle btw.
I have not seen this issue myself but I have read about shorted 02 coaxial cable ..and seen one or two vans with a new wire spliced in near the ecu.

re apprarent engine power ....were tire sizes about the same ? Extra big ties eat up apparent engine power.

scott
turbovans

On 3/8/2013 5:34 AM, Ken Garratt wrote:
Hi Philip,
It's said the engine runs rich when the Oxy sensor is disconnected or has failed, so running the engine in that state long term may not be a good idea.
It's said the Oxy sensor may not sense so well if the internals of the Catalytic Converter are shot/non existent.
A useful thing to know is that if your van should ever have the symptoms of "Vanagon Syndrome", it's worth trying disconnecting the large green wire of the Oxy sensor leads ... this may help get you home.

Examples of Oxy Sensor pricing from usual US suppliers, plus shipping cost:

Cheers.
Ken
To: Syncro_T3_Australia@yahoogroups.com CC: dobson_hamish@yahoo.com.au From: philipmacrae@yahoo.com.au Date: Thu, 7 Mar 2013 23:07:58 -0800 Subject: Re: [Syncro_T3_Australia] Exhaust sensors
Scott,
What does a new Oxygen Sensor cost these days???
I remember being told my Oxygen Sensor was exhausted so mechanic disconnected it and the car went well disconnected for a long time.
Not Totally sure if its connected today because its in the shop getting the ten year old penrite synthetic transmission oil changed so I cant check.
I never replaced it.
I always check the fuel consumption as I always fill the tank.
Using 95 Super petrol Getting about 11.5 lt per 100k without decoupler or diflock etc. Motor is original 255,000km. purchased with 98,000km. The VC is probably also exhausted!
Oil consumption is 1 litre per 10,000km or less depending on type of driving ie city vs highway or dirt roads.
When I drove the car for some years without the drive shaft (so 2WD) I think I got about 10.5lt per 100k.
Other Syncros I have driven have had better acceleration than mine.

From: Scott Daniel - Turbovans mailto:ScottDaniel@turbovans.com
To: Syncro_T3_Australia@yahoogroups.com
Cc: Hamish Dobson mailto:dobson_hamish@yahoo.com.au
Sent: Wednesday, 6 March 2013 1:53 PM
Subject: Re: [Syncro_T3_Australia] Exhaust sensors
Imagine all the gasoline wasted in all that time by not having it running really right.
Possibly rough on the engine having it run rich ..
like rough on the oil.
They are real easy to check for good function too ...the oxygen sensor.


On 3/6/2013 1:32 PM, Hamish Dobson wrote:
Hi all I recently replaced my exhaust sensor. Was the original that I never changed when I rebuilt my engine aprx 15000 km ago. I was always suffering from poor low down drivability issues due to over fueling. At traffic lights the car would bog down and and it got hot it got worse....then other times it was fine. After changing it and having to splice it into the wiring the car is like a whole new car. Very very pleased. Sent from my iPhone