Again, when it rains it pours!!...now bad throttle switch? AGAIN

[Huw Powell]

> But, what sensor is getting wet or humid that's
> causing the culprit?

> Car runs very nice and very smooth on non rainy days

Any, and all.

The solution is to (repeat after me) undo, clean, and reassemble all the 
electrical connections under the hood using dielectric grease to help 
seal out moisture.  I used to observe this "Audis run badly in the wet" 
thing before I started doing this.  In fact, had at least one die in 
heavy rain.

A lot of the connectors started getting better sealed in the late 80's, 
but your QSW probably still has some iffy engineering in that department.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/