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"Does anybody have any suggestion on how I can troubleshoot the problem and identify what's causing it?"
Jack up your car, pull the spark plugs and inspect the plugs and coil paks. The misfire cyl spark plug tip will be discolored (usually black or wet) compared with the other 5. Inspect the coil pak on the offending cyl and look for cracks or signs of arcing. Replace failed parts. Easy breezy.
The Durametric is nice but any simple $60 OBDII reader will also give you misfire codes that identify which cyl. is the problem.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 10-21-2010 at 10:54 AM.
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