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Re: 84 5000S High Rev
On Mon, 6 Mar 1995, Michael Spiers wrote:
> Hiya! On the 84 5000S I gave ot my girlfriend, I'm having a wierd problem.
> Once the car is warmed to running temperature, the thing revs at 2,000 RPM's
> consistently. Revs are around 900 RPM's when first started, and runs normally
> until operating temperature is reached. At first it only did this when it
> drove from DC to central PA, so I figured maybe it was an altitude sensor (do
> Audi's even have one of these?) but now it seems to do it no matter where the
> car is. Because it only does it when warm, is it possible the start-up valve
> is screwed up? Maybe an O2 sensor out of whack? Any input would be greatly
> appreciated! BTW, the car has a 2.2, non-turbo, 5spd manual.
> 87 5000CS TQ
My 83 Ur-q had the exact same symptom. It turned out to be leaking
injector seals. Cheap and easy to replace. It definately sounds like you
have a vacuum leak. Try spraying some carb cleaner around your hose
connections to try to isolate where the leak is.
Hope this helps.