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P0171 Code on 2000 SS

This is a discussion on P0171 Code on 2000 SS within the Computer & Tuning forums, part of the LSx Technical Help Section category; Hey guys, i have a 2000 camaro SS. it has a ported throttle body, ported heads, hooker headers, cats, no ...

  1. #1
    Junior Member
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    Red
    2000 Camaro SS

    P0171 Code on 2000 SS

    Hey guys, i have a 2000 camaro SS. it has a ported throttle body, ported heads, hooker headers, cats, no mufflers, NOS kit with 150 shot, 3.73 gears. I have only had the car about 2 months. all a sudden the service engine light came on. I hooked my obdII sensor to it and it showed a code P0171 (system lean bank1) any ideas why it may be running lean? I cleaned MAF sensor and it still turns on. Thanks

  2. #2
    Junior Member rabiddog's Avatar
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    Black
    2002 Camaro

    Here is the website for the codes

    http://obdii.com/codes.asp


    Fuel Trim System Lean Bank 1

    Dont have a clue what that means.

    You might want to repost under the tuning section.

  3. #3
    LS1.com Sponsor
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    94 silv

    either a vac leak or a faulty o2 sensor.

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