gutted cat for dinner

[Chris Dyer]

Well, depending on this cat, or moon spots on Jupiter, after warming up it 
sometimes idles at 2k rpm. B/c it hates me, whenever I drop if off at the 
wrench, no symptoms. Grrrr!

Prev. wrench tried another ecu, same problem. I was thinking it was either a 
vacuum leak or one of the air temp sensors gone screwy. I've perused the SJM 
site many a time, and that's the only thing I can think of.

Car runs fine aside from that.


>From: Burl Vibert <blur at sympatico.ca>
>To: Chris Dyer <chrisdyer at hotmail.com>
>CC: quattro at audifans.com
>Subject: Re: gutted cat for dinner
>Date: Thu, 25 Jan 2001 21:28:25 -0500
>
>
>
>Chris Dyer wrote:
>
> > So, for fuh-evuh I've had an un-diagnosable, intermittant high idle 
>problem
> > on my '87 5kcstq. Many an audi wrench couldn't figure it out.
> >
> > Latest guy is thinking bad cat. It does make a tinny-vibration noise
> > sometimes (I assumed it was just a bad hanger or something). It kinda 
>makes
> > sense; bad cat sends bad info to O2, the confusion begins.
>
>That diagnosis seems a bit out to lunch to me.  I've only ever seen cats 
>plug
>up, if that happened you would see a huge loss of power at high rpm, 
>probably
>not an idle problem.  Also I can't see how it would be intermittent.
>How high is your high idle?
>
>Burl Vibert
>1987 5000CSTQ
>1983 Coupe (anyone have a spare tranny?)
>Kingston, Ontario
>
>

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