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Re: Idle Stabilization Valve correct operation
>BTW, I don't buy the lean argument after thinking a bit. Airflow is
>measured before the throttle, before the turbo; the ISV is really an
>extension of the main throttle. Air going through the ISV is just like air
>going through the throttle.
Yes, I agree that my supposing that the open ISV caused "lean" running was
incorrect. That was also pointed out by someone else a few days ago on the
Anyway, I am still searching for the cause of the engine stumbling when
initially taking off after a cold (summertime) start-up. The problem
vanishes very soon thereafter, but it's a nuisance to get going smoothly
for the first few yards.
Phil Rose Rochester, NY
'89 100 (For Sale, 111K, automatic)
'91 200q mailto:email@example.com