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# Post Title Date User
Do we have a bad catalytic converter from these symptoms?   12 months ago Devin8778
2015 Toyota Corolla Misfire Catalytic converter High mileage emission test
P420 error code after changing the catalytic converter   3 years ago mutulica2
p420 catalityc converter cat error emission test emissions
What can I do before replacing the Cat Con, any good cleaner?   5 years ago luco008
2002-Honda-S2000 37000 miles Manual fail emission test Code P0420
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