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Old 10-03-2008, 07:36 PM   #19
TheMark3
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Join Date: Oct 2008
Location: Boston
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Another thought is to monitor your fuel trim and see what the engine thinks is happening with the fuel mix while this is happening.

...or stick a wide band sensor in the exhaust and see if it is rich or lean for yourself when this happens.

I would also recommend the NKG plugs - even a cheap set until you get this solved. When my 280Z was running as I described in my previous post - the NKG plugs were the only ones that could shake off the rich mixture - the rest would just foul until they died.
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