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1987 911 Carrera Unstable Idle

Fuel System

Vehicle Information: Model: 911 ; Year: 1987; Body Type: Coupe; Engine (type, size, modifications): 3.2; Total Mileage: 36,000;

About 75% of the time the idle likes to romp. Lowering the idle helpedfor a while. Now I have to let the clutch out in gear with the brake onat a stop light to force the idle down from 1,200 to only 1,000/1,100 andengine idles fine. Tried replacing the idle compensator with nodifference. When I blocked off the idle compensator, the problem goesaway! However, the engine stalls easily when cold, which is a liveableannoyance compared to the romping. Yes, the idle air bypass screw isturned all the way in to lower idle as well.

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