Oxygen Sensor

1
It finally occurred to me to replace the Oxygen sensor after a few
100,000 kms. My rig had been suffering from `listlessness' and
occasional surging &/or hesitating.

I sourced a new (aftermarket) 3 wire sensor from Vintage Vee Dub who
got it from `Tooley Imports'. I think the original is made by
Bosch? Any one know?

Very easy to install by cutting off and reusing the existing plug
connectors. 2 wires are for the heater (non polarity dependant) and
the other goes to the ECU.

The difference in performance was considerable and I wish I had done
it earlier. It now runs better than ever with less throttle.

The O2 sensor senses the amount of O2 in the exhaust & sends a
voltage to the ECU which then adjusts the air/fuel mixture to the
optimal level. Too much O2 indicates lean mixture which can cause
performance problems including misfire. Too little O2 indicates rich
mixture which wastes fuel.

Maybe should be changed every 100,000kms??

Regards

Peter
2
Hi all. I have been trawling through those PDF files in the EKTA CD and cannot find the oxygen sensor. I need to know the part number as I want to replace mine. Can someone help out here. Next trick will be sourcing one. I will try Harts Garage first!!!!

Cheers, Peter from Port
3
we don't even use part numbers to get one.
we just ask for a '3 wire Bosch oxygen sensor for a 2.1 T3 "
 
two styles basically ..
OE which is just plug-in and costs up to $ 130 US  or so. ..
and 'generic' ..
which comes with 10 inches of so of wire on it, and wire splices,  and you spice it in.
those are as low as about $ 50 US.
 
if you guys' vans use  3 wire heated 02 sensor, that is.
1.9 wbxr engines here use a single wire non-heated 02 sensor.
those are as low as $ 19.95 US in a generic non-bosch version.
 
never had to go by part # ....just ask for the part at a parts store..
like say a water pump ..
don't know about where you guys are ..but mostly we just ask for the part we want by name . 
 
I hope you don't have to pay anything obscene like $ 200.
 
----- Original Message -----
From: anni43elli
Sent: Tuesday, February 01, 2011 4:58 PM
Subject: [Syncro_T3_Australia] Oxygen Sensor

 

Hi all. I have been trawling through those PDF files in the EKTA CD and cannot find the oxygen sensor. I need to know the part number as I want to replace mine. Can someone help out here. Next trick will be sourcing one. I will try Harts Garage first!!!!

Cheers, Peter from Port

4
It could be Illustration 133-20 position 6.

(Always check as I am not an expert)

Phill


> anni43elli <peter@coeconsult.com.au> wrote:
>
> Hi all. I have been trawling through those PDF files in the EKTA CD and
> cannot find the oxygen sensor. I need to know the part number as I want
> to replace mine. Can someone help out here. Next trick will be sourcing
> one. I will try Harts Garage first!!!!
>
> Cheers, Peter from Port
5
Peter,
Correct description for an Oxygen Sensor is a "Lambda Probe".

ETOS parts catalogue, (a certain senior cit at Port actually has it on his laptop), similar to ETKA, lists the following component for the MV motor ...

Lambda Probe 025 906 265 B

Rudi fitted a new Lambda Probe in mine a few years ago. My records show the component packaging was as follows ...

NTK (by NGK Spark Plug Co of Japan) OXY 1065

Or else, looking up an online NGK Parts catalogue some time ago, it listed for our T3 MVs a Lambda Probe OZA 446-E2.

Or else, I think BERU have the Probe, finding it could be interesting, maybe through the VW service network.

Remember you could have "fun" extracting the old one, even pre-heating with exhaust heat may not be enough to release it.

Cheers.

Ken

 

To: Syncro_T3_Australia@yahoogroups.com
From: peter@coeconsult.com.au
Date: Wed, 2 Feb 2011 00:58:35 +0000
Subject: [Syncro_T3_Australia] Oxygen Sensor

 
Hi all. I have been trawling through those PDF files in the EKTA CD and cannot find the oxygen sensor. I need to know the part number as I want to replace mine. Can someone help out here. Next trick will be sourcing one. I will try Harts Garage first!!!!

Cheers, Peter from Port


6
G day Peter,what makes you think you need a new oxygen sensor?
If you get stuck for one I know where you could get a good second hand one.

From: anni43elli <peter@coeconsult.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Wed, February 2, 2011 11:58:35 AM
Subject: [Syncro_T3_Australia] Oxygen Sensor

 

Hi all. I have been trawling through those PDF files in the EKTA CD and cannot find the oxygen sensor. I need to know the part number as I want to replace mine. Can someone help out here. Next trick will be sourcing one. I will try Harts Garage first!!!!

Cheers, Peter from Port


7

Oxygen sensors are easy to test. Put a voltmeter across the output wire and earth. With the engine hot (say radiator fan has cycled once) the output voltage should continually change from anywhere between 0.1 to 1 volt. It should change value at a rate faster than once a second. Hitting the throttle and running through a range of engine speeds will vary the exhaust gas enough to do this. If you disconnect one of the fuel injectors you should get a constant low voltage reading. A voltmeter with a bar graph makes it easy to see the rapid change in voltage.

Good luck.

Tom

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of Ben Croft
Sent: Wednesday, 2 February 2011 11:32 PM
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Oxygen Sensor

 

 

G day Peter,what makes you think you need a new oxygen sensor?

If you get stuck for one I know where you could get a good second hand one.

 

From: anni43elli <peter@coeconsult.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Wed, February 2, 2011 11:58:35 AM
Subject: [Syncro_T3_Australia] Oxygen Sensor

 

Hi all. I have been trawling through those PDF files in the EKTA CD and cannot find the oxygen sensor. I need to know the part number as I want to replace mine. Can someone help out here. Next trick will be sourcing one. I will try Harts Garage first!!!!

Cheers, Peter from Port

 

8
Or just disconnect it and take it for a drive. The car should run perfectly but use a fraction more fuel and the exhaust pipe will be a bit blacker.

(the voltmeter is a more accurate way)



> Thomas Hanson <thomashanson@optusnet.com.au> wrote:
>
Oxygen sensors are easy to test. Put a voltmeter across the output wire and earth. With the
engine hot (say radiator fan has cycled once) the output voltage should continually change
from anywhere between 0.1 to 1 volt. It should change value at a rate faster than once a
second. Hitting the throttle and running through a range of engine speeds will vary the
exhaust gas enough to do this. If you disconnect one of the fuel injectors you should get a
constant low voltage reading. A voltmeter with a bar graph makes it easy to see the rapid
change in voltage.

Good luck.

Tom

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On
Behalf Of Ben Croft
Sent: Wednesday, 2 February 2011 11:32 PM
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Oxygen Sensor





G day Peter,what makes you think you need a new oxygen sensor?

If you get stuck for one I know where you could get a good second hand one.



_____

From: anni43elli <peter@coeconsult.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Wed, February 2, 2011 11:58:35 AM
Subject: [Syncro_T3_Australia] Oxygen Sensor



Hi all. I have been trawling through those PDF files in the EKTA CD and cannot find the
oxygen sensor. I need to know the part number as I want to replace mine. Can someone help
out here. Next trick will be sourcing one. I will try Harts Garage first!!!!

Cheers, Peter from Port