Chevrolet Express P Codes (Powertrain) P0400 - P0499 P0430

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Codes P0420and P0430, Catalytic Converter?

2019 CHEVROLET EXPRESS
In June My Car Developed A Leak At The Clamp Where The Y Pipe Meets The Engine. I Took It To A Mechanic Who Replaced The Whole Pipe. I...
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Asked by Mattandallie

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