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Thread: Misfire help

  1. #1
    Potential Tuner
    Join Date
    Dec 2022
    Posts
    8

    Misfire help

    I put a ghost cam tune on a 2019 F150 5.0 a few weeks ago. Today it got a misfire code. It seems to be running fine.

    I was wondering if there was any way to desensitize misfire codes just at low rpm?

    I did find a table for misfire sensitivity on the tune but I?m not quite understanding how to adjust to lower sensitivity

  2. #2
    Quote Originally Posted by DavidRempel View Post
    I put a ghost cam tune on a 2019 F150 5.0 a few weeks ago. Today it got a misfire code. It seems to be running fine.

    I was wondering if there was any way to desensitize misfire codes just at low rpm?

    I did find a table for misfire sensitivity on the tune but I?m not quite understanding how to adjust to lower sensitivity
    ECM 39204 allows you to set a minimum allowed load. You can log your load at idle and then set the minimum allowed load just a little higher than your log. I haven't tried this myself, but it looks like this should work.

  3. #3
    Potential Tuner
    Join Date
    Jan 2025
    Posts
    2
    i got a new account but thank you. i tried that and it is working so far