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CEL P0174

Discussion in '2011-2014 Mustang Talk' started by gar3awe, Dec 19, 2017.

  1. gar3awe

    gar3awe Member Established Member

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    Earlier today plugged in my sct and turned on my ghost cam, was driving fine and the check engine light went on, put the car on neutral and the car turned off. I do have a couple of exhaust leaks, but as soon as i put the performance tune back on. CEL went away, out of curiosity what could've been the problem?


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  2. KushBandit

    KushBandit Member Established Member

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    Need more information to help. P0174 is a lean condition code.

    Has this happened with your ghost cam tune in the past? Could just be the exhaust leak is causing one of your O2 sensors to misread.

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  3. gar3awe

    gar3awe Member Established Member

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    Happened only once!


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  4. KushBandit

    KushBandit Member Established Member

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  5. gar3awe

    gar3awe Member Established Member

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    I use once or twice a month. Been having it for 6 months.


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  6. KushBandit

    KushBandit Member Established Member

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    Clear the Keep Alive Memory and see if the code returns. If it doesn't, then don't worry about it.

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