Chevrolet Trax P Codes (Powertrain) P0400 - P0499 P0420

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Code P0420?

2015 CHEVROLET TRAX
Hello, I Have The P0420 Code On My Car. I Have Replaced The O2 Sensor And Have Run Cataclean Through It And The Code Has Not Cleared. When I...
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Asked by quentinn

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