Chevrolet Forum - Chevy Enthusiasts Forums - 2002 Tahoe codes PO178 and PO179

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rhunt1946

January 3rd, 2012 5:10 PM

2002 Tahoe codes PO178 and PO179

My Tahoe shows these codes. I don't use flex fuel. Could these codes refer to some other sensor instead of the fuel composition sensor?

73shark

January 3rd, 2012 5:16 PM

Welcome to the forum.

Is your truck built for FlexFuel? If so, then it will have the sensor. Doesn't matter if you burn corn in it or not. ;)

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