Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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has anything been done yet to correct this problem yet ?
how does it run ?
at idle ?
driving down the road ?
a 171 is a lean code usually
this is caused by lower intake manifold gasket leaks or dirty MAF sensors or low fuel pressure
make sure there are NO vacuum leaks if not then clean the MAF and see if that helps at all
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