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Old 09-03-2009, 09:17 AM
buickpe87 buickpe87 is offline
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Default Re: Missfire under light load when hot


If I understood right your explanation, your gn has problems only in closed loop, but full throttle and cold, when the car is in open loop: no problems, right?

Check also O2- sensor in addition what Scott stated. Should throw trouble code in most cases, not always. Check EGR-valve and all vacuum hoses.

MAF- failure can also cause sometimes that kind of driveability problems.
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