Audi 1996 2.6 Cabriolet very high revs ??

[Egger]

Hi all,

I have just joined the forum and was wondering if anyone could give me a pointer for this problem...

I jump started my 1996 2.6 Audi and it has been completely messed up since , it idles at around 1500 revs sometimes 2000 and above, it also revs up and down on its own within that rev range. The throttle is in the shut position so its not that jammed open. I think I may have shorted the Ecu ? Also does anyone know where the Ecu is located on that model ? I am at a loss and as its Christmas everyone is off on holiday. The engine code is the ABC varient if that helps.

I have tried this to no avail...Disconnect battery for about 20 minutes then reconnect. Turn ignition on but do not start the car for 30 seconds. This will teach the ecu where zero is on the throttle body.

First impressions were that the above had worked but when driving it the problem of the irratic idle returned also a 2 to 3 second delay from removing my foot from the accelerator to it dropping down in revs causing it to jolt the car. The revs at best still stay at 1100 (sometimes higher) when idleing and also when using the throttle to accelerate through the gears when you dip the clutch the revs still rose up about another 500 rpm before dropping. Is there a valve to control revs or vac pipes ? I have no idea where they would be located either...?

All input gladly received.

[topsparky]

try cleaning the isv (idle stabilisation valve)
and check to see if the pipes are clear
alsocheck the maf (air flow sensor ) should be near the airfilter
picture of isv

[Knight Rider S4]

Good to see you got here .......I agree with the ISV is the next port of call get it off and give it a clean out with some carb cleaner /thinners and see if that helps,you can do the same with the MAF

Cheers

(rev-head)

[Knight Rider S4]

Any joy with getting vag.com on it?

[topsparky]

Good to see you got here .......I agree with the ISV is the next port of call get it off and give it a clean out with some carb cleaner /thinners and see if that helps,you can do the same with the MAF

Cheers

(rev-head)

don't forget to be gentle with the maf
don't spray anything onto it
just soak it in some ipa

[Egger]

Hi Topsparky,

I will look into these tomorrow as I am tied up at present, thanks for the advice.

Cheers


Hi Knight Rider,

Thanks for putting me onto this forum and I haven't been able to get Vag.com on it yet, I will be on to it when the garages open again after Christmas, I ain't feeling very Christmas like at the moment !

Cheers

[topsparky]

Hi Topsparky,

I will look into these tomorrow as I am tied up at present, thanks for the advice.

Cheers

lucky you
does she charge by the minute

[Egger]

Hi again,

Further update ....

I got into the car today and everything was back to normal ??
I have used it twice since this morning and its still ok, so I am guessing the valve must have re seated itself ?

I will take the advice and clean the isv and maf just to prevent a further occurence.

Thanks again and have a great Christmas/new year,

Cheers

[topsparky]

Hi again,

Further update ....

I got into the car today and everything was back to normal ??
I have used it twice since this morning and its still ok, so I am guessing the valve must have re seated itself ?

I will take the advice and clean the isv and maf just to prevent a further occurence.

Thanks again and have a great Christmas/new year,

Cheers

glad you got it sorted

[Knight Rider S4]

Hi again,

Further update ....

I got into the car today and everything was back to normal ??
I have used it twice since this morning and its still ok, so I am guessing the valve must have re seated itself ?

I will take the advice and clean the isv and maf just to prevent a further occurence.

Thanks again and have a great Christmas/new year,

Cheers

Santa must of been busy even fixed your car

[Egger]

Hi,

Last update...

Everything is still good and I took it on a 180 mile round trip yesterday, so hopefully thats the end of it now !

I would also like to thank Topsparky for the advice and also Knight Rider for the heads up about this site.

Thanks again and hope you have a great and trouble free New year !