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  1. #1 Re: p0420 
    GT Level Member Madness's Avatar
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    I have heard some aftermarket cats do not do a good enough job and set off the code. Some just ignore it if it comes on shortly after a new aftermarket cat is installed.
    Favorite Quote: You can't fix stupid!!


    http://www.youtube.com/watch?v=0gxKStPXyn8
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  2. #2 Re: p0420 
    GT Level Member chickenfried's Avatar
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    is this true? anybody?
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