At 11:48 AM 5/20/2010, Zoltan wrote:
>Check if your idle switch is working at all.  It should click when you move
>the throttle arm and switch off as you release it.  If it does not work, you
>need to adjust that to make it work, so the computer knows that you are in
>idle mode now.

This is true; but the Digijet idle stab module is completely
independent of the ECU.  It sits in the middle of the line between
the distributor and the ignition module, and arbitrarily starts
messing with the timing when the RPM falls below its operating
threshold (slightly different between California and Federal models).

Yours,
David