P0430 Catalyst System Efficiency Below Threshold Bank 2
09-11-16, 07:59 PM
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P0430 Catalyst System Efficiency Below Threshold Bank 2
My 04 GX470 is throwing a P0430 catalyst system bank 2. Does this typically mean I have to replace the cat converter? I already know my muffler is shot with hole blown through it, could that be causing this code or is this going to be a cat back job? Please let me know if you have any thoughts or suggestions.
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