2007 AND NEWER GM 5.3 LITER

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Model Year Condition Remarks
silverado 2014 Unknown None
Tahoe 2007 Unknown New b1s1, alcohol% reset to 3, codes cleared
Tahoe 2007 Unknown New b1s1 O2,. Alcohol still 29%, codes not cleared
Tahoe 2007 misfire B1s1 looks dead p0300 stored and negative fuel trims worst at idle. Alcohol %29
Tahoe 2016 Known good AFM not deleted
Sierra 2009 Unknown No codes and seems to run and drive well
avalanche 2007 Known good Afm/newengineat100k/liftersat200kmilesnow256k
silverado 2008 Known good None
silverado 2014 misfire RandomMisfire on overnight
Sierra 2007 Unknown None
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