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p0430 premanent
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  1. Challenger Issues & Problems
    2013 Challenger of course SXT 3.6 145804 miles has a P0430 Permanent Catalyst Efficiency Bank 2 code. If you Clear the code 2 go away and the Permanent stays. I have replaced the Catalytic Converter both the upstream and downstream 02 sensors. Has 2.49V on the return circuit and 4.9V on the...
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