Update on 20v Stalling

[Dan Sinclair]

Thanks Darin for responding.

To recap - Saturday my '90 CQ was stalling at every stop.  Wouldn't idle at
all for a time - just died if you didn't hold the accelerator.  Running
rough.  Completely carbon fouled a near new set of Bosch Silber plugs.  And
the engine was spinning down very slowly - from 4000 RPM to idle took
several seconds - slowly drifting down the RPM range.

Return trip home (about 250 miles of highway driving) the CQ is now running
close to normal.  No stalling.  Idles a bit fast - about 1000 RPM - but very
close to normal.   The engine still spins down very slowly every 5th - 10th
deceleration.  But more often than not it's spinning down normally.

What gives?  Could all of this really be bad gas?

I searched for vacuum leaks, etc. and found nothing amiss.  I did see that
there seems to be dissention in the Audifans Archives as to whether an NG
20v will stall when the oil fill cap is removed, or the dipstick is pulled.
In the archives, several 20v owners confirmed that there cars run perfectly
without the oil cap or dipstick.  Mine does too.  Neither affects my idle.

Anyone have suggestions on the slow spin-down?

Thanks,

Dan
1990 CQ