82 coupe heat/idle problem

[Huw Powell]

> If I switch the selector to heat, the engine will not idle.  It'll drive fine
> with the heat on, but as soon as you push in the clutch to downshift the
> engine dies.
>
> With selector in cool position there are no problems.

Hmmm. All the way to cool?  on your car that essentially acitivates the
A/C, or what's left of it.  And that opens an air valve electrically
that raises the idle by bypassing the throttle body.

on "heat" will the car run if you keep your foot on the gas pedal a
bit?  by "heat" do you mean anywhere in the "red" part of the scale?

things to check anyway: vacuum leaks (as always!), mixture settings,
tune up parts in general.

--
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/