Quote:
Originally Posted by nystargazer
ok edited post i have the 3800S11 engine
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I would check to make sure the fuel pressure remains up after turning off the key. It could be an injector or two leaking the remaining pressurized fuel into your combustion chamber. Put a gauge on the fuel rail and monitor the fuel pressure for a half hour after you turn the car off.. It should stay up. Also, clean your throttle body, check your air filter. When was the last tuneup?