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Old 06-03-2003, 11:37 AM
sbourg sbourg is offline
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
It could be lots of things, including worn feedback pot in the airflow meter (wears through at idle position), vacuum leaks (air intake that does NOT get metered), intermittant throttle position sensor (KE system does not sense throttle closed, and thus does not activate idle air valve), etc. Note that a 'warm start' condition usually involves combustion chambers that have cooled from running temps, and fuel ignition will require precise metering. A cold engine has help from the cold-start valve, and a running engine will be less picky.

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