Audi's idle all over the place

[David]

> 
> From: "Gerald Penyweit" <jeri408 at hotmail.com>
> Date: 2004/10/28 Thu PM 12:46:55 EDT
> To: quattro at audifans.com
> CC: shiftkit23 at yahoo.com
> Subject: Audi's idle all over the place
> 
> This is what my cousin wrote to me. He is keeping my Audi for a few months.
> 
> >"I started driving the audi a few
> >days ago, and its driving well. I think it may need
> >an idle sensor because it will not idle down around 900
> >RPM. Its at about 1800 RPM at idle. Every now and then
> >it will idle down to about 1000 RPM for a few seconds
> >then it will jump back up to 1800 RPM."
> 
> The car has not been driven since Aug 04, 2002. Can anyone
> relate to what this problem could be?
> 
> Thanks,
> 
> 
> Gerald
> 
> 
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Vacuum leak or dead/stuck Idle Stabilization Valve (ISV). My guess is stuck. Pull it and clean thoroughly with spray throttlebody cleaner...

Dave

1987 Coupe GT Special Build 2.3 
All in SE VA