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Join Date: 09-11-11
Location: az
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Have a 2005 chevy cobalt with 2.2 ecotec. cel came on. runs great for a minute and then barely runs or drives the next minute. Code 0171, 133, and 137. Repaced both 02 censors and maf sensor. Checked air cleaner and checked for leaks. Still the same. I have disconnected battery and reset and still the same problems. Have also re set gas cap. Not sure what to do next. Car is 100% stock with 64k