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Looks like your car is running lean and the DME has trimmed the mixture to the rich threshold. Look for an intake air leak, or bad AOS bellows, or bad gas cap, and be certain the MAF was changed (old parts in hand).
Common dealer mis diagnoses: bad O2 sensors.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 06-07-2008 at 10:07 PM.
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