HELP THREW SES CODE P0420 CATALYST SYSTEM
09-16-2003, 12:28 PM
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HELP THREW SES CODE P0420 CATALYST SYSTEM GOT THE SES CODE P0420, IT READ ON THE PREDATOR" CATALYST SYSTEM BANK 1, EFFICENCY BELOW" What the hell does this mean? Could it have something to do with the cutout?
09-16-2003, 12:46 PM
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Re: HELP THREW SES CODE P0420 CATALYST SYSTEM My buddy had the same code last week, took it to the dealership for warrantly,Low Catalytic Efficiency was the code PO420. They replaced his passenger side cat, it had a huge dent in it and messed the cat up they said.
