The idle stabilization system is really to improve cold engine
driveability off idle.  A warm engine should idle at the 880 RPM with
the idle air motor disconnected.  Even though the system is always
active, the base engine idle adjustment should be with the normal range
with it disconnected.

The base engine idle speed is set with the engine warm and the idle
system disabled.  Idle speed is then manual adjusted by turning the air
bypass screw in or out.  It wouldn't hurt to disconnect the O2 while
doing this and monitoring it.  The CO adjustment is done after the idle
is correct.  Simply turn the allen screw beneath the cover located on
the AFM .

I target .5 volts.  on the O2 at idle What your really adjusting is the
air vane position at idle.  Give it a try.

Then connect the idle stabilization system and see how it behaves on
cold start.

Sincerely,

Mark Keller
91 Carat