P0420 Code Gmc Sierra

18 Sep 2023

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2002 GMC Sierra 1500 - what is Code P0420

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P0140 Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 2

How to fix obd code p0420 on a gmc sierra

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I have a 07 gmc sierra 2500hd has the 6.0l it has the p0300 randomGmc sierra 1500 p0449 p0171 specs p0174 codes p0300 cars code trouble colors base car capacity cab truck year reviews 2013 gmc sierra 6.6 v8 diesel. truck has multiple codes: p2463, p0420Cannot erase code p0449: last year i replaced the evaporative.

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