CIS-E warm no start

[Huw Powell]

> My 89 80q has sometimes dipped a little bit low in RPMs when I go from
> open throttle to idle.  Also, on occasion it will be hard to start when
> it's warm, it might take 5-8 seconds of cranking before it will fire up.
> 
> I cleaned up the ISV....It seems to idle fine most of the time (if it is even
> the cause issue), the idle only dips when I go from medium-wide open throttle
> to shut...

Check to make sure your idle switch is closing consistently when the 
throttle closes (unplug the two throttle switches and test with meter). 
  If it is sticking a bit, the ECU won't know to use the ISV to catch 
and control the idle.

> Recently, the weather has gotten very cold to where days have a high of 15
> degrees.  All the sudden, my idle dip and hard starting got WAY worse.

> Worse, the hard-starting when warm is now NO START when warm!  I have to
> wait 20 minutes in the cold weather before it will start again.  The car
> runs fine before it's stopped, it just won't start back up.  It looks like
> a fuel issue (it still sparks, just no start.)

That might be a separate problem, but see if you can get the idle 
working right and then tackle the warm start problem.  Does the warm 
start problem occur no matter what you do with the gas pedal?

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/