'91 Coupe quattro erratic cold idle

Tue Sep 5 20:36:58 PDT 2017

Intake air leak?

-Ti
-- 
Sent from my commlock

> On Sep 5, 2017, at 8:29 PM, jlagnese at massed.net wrote:
> 
> A temperature sensor? 
> 
> ----- Original Message -----
> 
> From: "Christopher Gharibo" <cgharibo at usa.net> 
> To: 20v at lists.20v.org, quattro at audifans.com 
> Sent: Tuesday, September 5, 2017 4:24:15 PM 
> Subject: '91 Coupe quattro erratic cold idle 
> 
> My '91 CQ idle vacillates between 200-1000 when engine cold. If I release the accelerator when engine cold, the car may stall. Turning the AC on keeps the car from stalling. 
> 
> I cleaned and swapped the ISV without success. Any other thoughts? 
> 
> Thanks. 
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