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Thread: Check engine light - P0171

  1. #1
    pirategrad87 is offline Cadillac Owners Member
    Automobile(s): 2007 Black CTS-V
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    Check engine light - P0171

    So I have had the car for about 2 months and the check engine light came on last night after some hard acceleration. Went to Autozone and got them to check the code - it is a P0171 - Fuel trim bank one - said "Too Lean".

    The car is an 07 V and everything else seems to be running fine. I am not positive about this but I think the warranty would have just ran out?? Anyone have any ideas or seen this before?

    Thanks in advance!

  2. #2
    darkman's Avatar
    darkman is offline Cadillac Owners Master
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    Re: Check engine light - P0171

    This post has an attachment on that code:
    http://www.cadillacforums.com/forums...ml#post2897799

  3. #3
    pirategrad87 is offline Cadillac Owners Member
    Automobile(s): 2007 Black CTS-V
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    Re: Check engine light - P0171

    Thanks Darkman! The check engine light actually went away now so I am assuming this isn't something to worry too much about..

  4. #4
    darkman's Avatar
    darkman is offline Cadillac Owners Master
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    Re: Check engine light - P0171

    I would not worry about it - it may have been some condensation in the fuel, or an intermittent electric connection.

  5. #5
    Join Date
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    Re: Check engine light - P0171

    I'm sorry to hear that you were experiencing this, pirategrad87! I just wanted to let you know that I would be happy to provide you with all the applicable warranty information for your particular V; please send me an email anytime at Katie_Lucille@gmexpert.com with your name and VIN.

    Best,

    Katie
    Cadillac Customer Service


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