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Thread: 2015 f150 2.7eco stumbles after refueling

  1. #1

    2015 f150 2.7eco stumbles after refueling

    here is alog of a 2015 2.7 eco all stock. fuel trims -28 and then misfires. seems to correct itself after it pegs af lean 20af. once it corrects it will idle and then start trimming negative until its -28 and then it will misfire again. it does this about a dozen times only after refueling and then it wont do it again. log attached. anyone have insight on this?
    Attached Files Attached Files
    2002 Camaro SS, Twin S480s
    2006 Corvette C6, Twin Turbo
    1991 GMC Syclone, LS/AWD/AC

  2. #2
    Potential Tuner
    Join Date
    Sep 2018
    are you topping it off when you refuel? Dont click the handle more than once after it clicks off the first time.