Re: "Oh Wise Listers...."

[Chris Newbold <cnewbold@transarc.com>]

Bob_Beach@notes.amdahl.com wrote:
> 
> The Audi god, "Audi-ekia" has frowned once again on me.  My '93 90CS is in
> the shop...Ugh....again!  Monday night I noticed a rough idle shake when
> I'm at a stop and a slight hesitation when I step on the accelerator.  My

Details of the car? Milage, service history, etc?

Unless you've got a bad injector, the cause is probably ignition related.
Bad grounding can cause all sorts of maladies; check the two brown
wires grounded to the throttle body--corrosion here seems common.

I believe that EGR problems can lead to misfiring, though it generally
seems to happen at higher RPMs.

It's always worth a shot to check for codes in the ECU; it may have
detected some failure.

-Chris
1993 90CS 70k miles