no power under load

1
Hi Volks,

I have  a problem that occurred  after I removed and reattached the idler control valve.
I also removed , cleaned and reattached connectors in the engine compartment.
It started off with the idle not dropping after deceleration - it stayed very high and did not drop.
The problem now is that under load the engine does not pull  there is no power.
I have to shift down to second where normally 3rd is easy
Just reving it up not under load seems to be ok.
Checked air flow meter resistance seems - to be ok.
Voltage on pin 2/3 is 5 V so. is this correct?
Any suggestions please
I rechecked all the connections I took off.
 
Tom
2
Tom. Check air flow metre clamp is tight. An air leak around the clamp onto the throttle body will give these symptoms. Bill
3
The hopefully final word

I limped to the " Deutscher Auto Engineer"  in Lylidale Victoria.
He said  strange symptoms -  never came across anything like it.
It was then decided that it must be the catalytic converter/ exhaust having broken internally - some pipes blocking the exhaust air under load.
I crawled back home to organize a time to have the job done.
My way home was a slow trip till I got to about 300 m from home driving slowly up a hill when suddenly I heard a kind of a metallic click from the engine compartment and was 'thrown back' into the seat.
Full 'power' was restored.
Don't know what happened -  maybe pipes in converter/exhaust reorganised them selfs again.
Totally coincidental to what I did- I think.
New converter and exhaust are the next purchase -  maybe stainless from Go Westy.

Tom
4
Brilliant result Tom!

On 25/03/2014 6:17 PM, Tom Mischler wrote:
 
The hopefully final word

I limped to the " Deutscher Auto Engineer"  in Lylidale Victoria.
He said  strange symptoms -  never came across anything like it.
It was then decided that it must be the catalytic converter/ exhaust having broken internally - some pipes blocking the exhaust air under load.
I crawled back home to organize a time to have the job done.
My way home was a slow trip till I got to about 300 m from home driving slowly up a hill when suddenly I heard a kind of a metallic click from the engine compartment and was 'thrown back' into the seat.
Full 'power' was restored.
Don't know what happened -  maybe pipes in converter/exhaust reorganised them selfs again.
Totally coincidental to what I did- I think.
New converter and exhaust are the next purchase -  maybe stainless from Go Westy.

Tom

5
Not so brilliant if you don't know what it was all about. Take the converter out and check it by looking into it. It happened once to me and even NRMA was lost for advice, the engine started but died after a few seconds. I rang stephen Müller and he advised to undo the converter and trash the internals with a bar of some sort. The NRMA garage people looked on and when I had the converter back in, I started the car and went home. A few years on I found a converter again and all is fine.
Hart
On 25/03/2014, at 8:01 PM, spbconsulting@bigpond.com wrote:

 

Brilliant result Tom!

On 25/03/2014 6:17 PM, Tom Mischler wrote:
 
The hopefully final word

I limped to the " Deutscher Auto Engineer"  in Lylidale Victoria.
He said  strange symptoms -  never came across anything like it.
It was then decided that it must be the catalytic converter/ exhaust having broken internally - some pipes blocking the exhaust air under load.
I crawled back home to organize a time to have the job done.
My way home was a slow trip till I got to about 300 m from home driving slowly up a hill when suddenly I heard a kind of a metallic click from the engine compartment and was 'thrown back' into the seat.
Full 'power' was restored.
Don't know what happened -  maybe pipes in converter/exhaust reorganised them selfs again.
Totally coincidental to what I did- I think.
New converter and exhaust are the next purchase -  maybe stainless from Go Westy.

Tom



6
I pulled out my exhaust gas sensor to get me home when mine died once

Sent from Yahoo Mail for iPhone

From: Hartmut <hartis@live.com.au>;
To: <Syncro_T3_Australia@yahoogroups.com>;
Subject: Re: [Syncro_T3_Australia] Re: no power under load
Sent: Tue, Mar 25, 2014 10:09:45 AM

Not so brilliant if you don't know what it was all about. Take the converter out and check it by looking into it. It happened once to me and even NRMA was lost for advice, the engine started but died after a few seconds. I rang stephen Müller and he advised to undo the converter and trash the internals with a bar of some sort. The NRMA garage people looked on and when I had the converter back in, I started the car and went home. A few years on I found a converter again and all is fine.

Hart
On 25/03/2014, at 8:01 PM, spbconsulting@bigpond.com wrote:


Brilliant result Tom!

On 25/03/2014 6:17 PM, Tom Mischler wrote:
The hopefully final word

I limped to the " Deutscher Auto Engineer" in Lylidale Victoria.
He said strange symptoms - never came across anything like it.
It was then decided that it must be the catalytic converter/ exhaust having broken internally - some pipes blocking the exhaust air under load.
I crawled back home to organize a time to have the job done.
My way home was a slow trip till I got to about 300 m from home driving slowly up a hill when suddenly I heard a kind of a metallic click from the engine compartment and was 'thrown back' into the seat.
Full 'power' was restored.
Don't know what happened - maybe pipes in converter/exhaust reorganised them selfs again.
Totally coincidental to what I did- I think.
New converter and exhaust are the next purchase - maybe stainless from Go Westy.

Tom
7


Hi Tom and ALL,

Combined with use of a Bentley Workshop Manual, the following link covers some DIY maintenance items including catalytic converter you mention, worth a read and even to copy/paste/save to a file for future reference.

If not already done so, why not read Van Cafe's whole news article, a range of topics and especially if interested in availability of parts that once were obsolete but since returned to stock officially or else through third parties.

The part enquiry that comes up here every so often concerns one or more of the four mini mud flaps. See parts numbered 9 and 10 here on the following schematic:
I thought they were NLA for some time now yet three of the four are still listed at VW Classic Parts in Germany, albeit very expensive. At the following link, click on "Access without prior registration" then simply do a search by entering "mud flap" at "Description" and it should list three of the four flaps as being available.
So if this info is to be believed, then the left front 251 821 809A is the one definitely NLA new.
Even more expensive and to have a syncro nutter belly laugh and if you're desperate for a replacement right front one, then check the price (plus shipping) on this "gold plated gem" here.....
Or else take a punt on this pot pouri of god knows which ones are actually on offer and who knows whether they are serviceable at all ... I have my doubts, let the buyer beware ... 
With all this now revealed, perhaps the second-hand resale value of these mud flaps have now skyrocketed, especially the left front NLA one.

Finally, an optional accessory for those like me carrying a 15" spare wheel underneath, I'm curious as to what others may think of this item or may already have one fitted and can comment on its real life benefit or otherwise.

Hope all this is of some interest.
Cheers.
Ken


To: Syncro_T3_Australia@yahoogroups.com
From: energysustained@ymail.com
Date: Tue, 25 Mar 2014 00:17:29 -0700
Subject: [Syncro_T3_Australia] Re: no power under load

 

The hopefully final word

I limped to the " Deutscher Auto Engineer"  in Lylidale Victoria.
He said  strange symptoms -  never came across anything like it.
It was then decided that it must be the catalytic converter/ exhaust having broken internally - some pipes blocking the exhaust air under load.
I crawled back home to organize a time to have the job done.
My way home was a slow trip till I got to about 300 m from home driving slowly up a hill when suddenly I heard a kind of a metallic click from the engine compartment and was 'thrown back' into the seat.
Full 'power' was restored.
Don't know what happened -  maybe pipes in converter/exhaust reorganised them selfs again.
Totally coincidental to what I did- I think.
New converter and exhaust are the next purchase -  maybe stainless from Go Westy.

Tom


8

Good work Ken and a great article on Van Issues and Tips on troubleshooting.

PS think I am driving around in a fortune worth of spare parts?

Cheers Pete

9

Ken,

 

Thanks for refreshing my memory.

By the way, as far as I know, VW Classic parts don't deliver outside Europe - what a shame.

 

Cheers, Theo

 

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of Ken Garratt
Sent: Thursday, 27 March 2014 4:10 PM
To: _T3_Australia forum Syncro
Subject: [Syncro_T3_Australia] Re: no power under load

 

 



Hi Tom and ALL,

 

Combined with use of a Bentley Workshop Manual, the following link covers some DIY maintenance items including catalytic converter you mention, worth a read and even to copy/paste/save to a file for future reference.

 

If not already done so, why not read Van Cafe's whole news article, a range of topics and especially if interested in availability of parts that once were obsolete but since returned to stock officially or else through third parties.

 

The part enquiry that comes up here every so often concerns one or more of the four mini mud flaps. See parts numbered 9 and 10 here on the following schematic:

I thought they were NLA for some time now yet three of the four are still listed at VW Classic Parts in Germany, albeit very expensive. At the following link, click on "Access without prior registration" then simply do a search by entering "mud flap" at "Description" and it should list three of the four flaps as being available.

So if this info is to be believed, then the left front 251 821 809A is the one definitely NLA new.

Even more expensive and to have a syncro nutter belly laugh and if you're desperate for a replacement right front one, then check the price (plus shipping) on this "gold plated gem" here.....

Or else take a punt on this pot pouri of god knows which ones are actually on offer and who knows whether they are serviceable at all ... I have my doubts, let the buyer beware ... 

With all this now revealed, perhaps the second-hand resale value of these mud flaps have now skyrocketed, especially the left front NLA one.

 

Finally, an optional accessory for those like me carrying a 15" spare wheel underneath, I'm curious as to what others may think of this item or may already have one fitted and can comment on its real life benefit or otherwise.

 

Hope all this is of some interest.

Cheers.

Ken

 

 

To: Syncro_T3_Australia@yahoogroups.com
From: energysustained@ymail.com
Date: Tue, 25 Mar 2014 00:17:29 -0700
Subject: [Syncro_T3_Australia] Re: no power under load

 

 

The hopefully final word

 

I limped to the " Deutscher Auto Engineer"  in Lylidale Victoria.

He said  strange symptoms -  never came across anything like it.

It was then decided that it must be the catalytic converter/ exhaust having broken internally - some pipes blocking the exhaust air under load.

I crawled back home to organize a time to have the job done.

My way home was a slow trip till I got to about 300 m from home driving slowly up a hill when suddenly I heard a kind of a metallic click from the engine compartment and was 'thrown back' into the seat.

Full 'power' was restored.

Don't know what happened -  maybe pipes in converter/exhaust reorganised them selfs again.

Totally coincidental to what I did- I think.

New converter and exhaust are the next purchase -  maybe stainless from Go Westy.

 

Tom