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  1. #1 P0420 code 
    parsonsl1
    parsonsl1 is offline
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    Exclamation 10-29-2012
    Hello I am new to this forum,

    I have a 2006 Grand Prix with a supercharged engine. I am looking to see if there is anyone out here in Cleveland that knows how to program my computer to get this P0420 code off my car?


    There is no funny smell coming out of exhaust, car runs fine. The guy at Autozone said it's likely there is tiny leaks in cat converter and sending a message to my computer that there is a leak. Any help would be greatly appreciated.

    Thanks

    Liza
    Last edited by parsonsl1; 10-29-2012 at 04:12 PM.
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