Po420 Code Chevy

17 Sep 2024

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Can a bad oxygen sensor cause a po420 code?

P0420 and p0430 codes How to fix code po420 and po430. pass emissions test. Po420 code.....get rid of the light

Can a bad oxygen sensor cause a po420 code?

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P0420 code. how to fix it. don't spent spend tons of $$$.

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What does the p0420 code mean? causes and how to fix

Po420 bank codePo420/430 code. this is the way you fix it! That annoying....po420 code....fixed!! yea!!~~Have engine code po420,have replaced all plugs and coils.both o2.