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seafoam
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  1. Maintenance Tech
    Hi, I've been looking into my Christmas tree lights w OBD2 codes P0420 and P0430 meaning the catalytic converters may be bad. In looking around I found LTFTs of 12 at idle that increased to 14 at 3000 RPM in Park. Normal is under 5. This meant the engine was adding extra fuel. One cause is...
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