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What year? Posted by Ari [Email] ![]() ![]() In Reply to: Still scratching head after new AMM, Austin Underwood, Mon, 3 Dec 2007 07:51:00 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Do you have the adjustable AMM - it has an adjustment screw in the side, clearly visible. Aluminum body. If so, it need to be adjusted to work properly. If it is a plastic body AMM without the screw, never mind.
Unlikley it is the O2 sensor. The O2 sensor can adjust fuel, not air. It takes both to idle fast. And an O2 sensor that far out would be caught by the engine control as bad. So I'd look for air getting into the system. That would be either the AIC, or a vacuum leak after the throttle body. The hose from the valve cover, etc. Also make sure the oil filler cap fits well, because that can let air into the system, which works its way through the valve cover and into the throttle body.
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