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o2 sensor

  1. P0430 check-engine code

    General Discussion
    Hey folks, I did the key dance on my 2005 5.7 and the code that popped up is P0430 which as I understand it means that one cat converter seems to not be as efficient as it should. I understand that this could be caused by a broken/clogged/etc cat or a failing O2 sensor. But could it be caused...
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