P0420/0430 Troubleshooting

The P0420/P0430 DTCs related to catalytic converter efficiency are among the Top 10 DTCs we deal with on a regular basis. It’s easy to assume by the description that the converter itself has failed – and it just may have – but more often than not there is another culprit hiding in the wings that either caused the death of the converter or the code itself. In this Motor Age/TST Pay-Per-View webinar, we’ll share testing methods and tips to help you successfully correct the problem the first time around.

 

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