Thread: Need help!!

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  1. #1 Need help!! 
    SE Level Member Peirce1970's Avatar
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    I have a very bad mis at idle runs smooth while driving and seens to have plenty of power. Stopped by advance today so I could have it scanned. The code I got were P0135 Oxygen sensor bank 1 sensor 1, P0300 Random, multiple musfire, and P0420 Catalyst system efficiency below threshold bank 1. Anybody know what this could be? One O2 sensor? Both O2 sensors?
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  2. #2 Re: Need help!! 
    SE Level Member Peirce1970's Avatar
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    Looks like I'm on my own with this one! I thought this site was here to help people out. Boy was I wrong!!!
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  3. #3 Re: Need help!! 
    The Blue One blueguy's Avatar
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    I means either...

    A) Your cat is clogged...

    B) Your front o2 Sensor is toast

    C) Your cat is developing a misfire...most likely from the clogged cat...along with it most likely trashing your front o2 from all the heat it built up.

    Sorry people have lives other than GPF...we don't live here. You can always research on your own you know...there is a search button here and there is another AWESOME PLACE YOU MIGHT NOT HEARD OF...

    called...

    www.google.com

    /endrant.
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  4. #4 Re: Need help!! 
    Your ClubGP Liason copgtp's Avatar
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    Quote Originally Posted by Peirce1970 View Post
    Looks like I'm on my own with this one! I thought this site was here to help people out. Boy was I wrong!!!
    So someone doesn't answer your question, which is a question that is answered 100 times a month here, in a day and we're not helpful..........

    Since I want to be as helpful as I can, here is a link, you will find the answer to your question there:

    The answer to your question, CLICK HERE!!!!!!
    For all your 3800 needs:
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  5. #5 Re: Need help!! 
    SE Level Member Peirce1970's Avatar
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    I do appreciate the help! I I did reserch before I posted and did'nt really find anybody with the same combination of trouble codes and the same exact same symtons as me.
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