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Thread: 2011 LML Derate.

  1. #1
    Potential Tuner
    Join Date
    Sep 2014

    2011 LML Derate.

    I have a 2011 derating due to a DEF quality issue. Sets P20EE and P207F. It always works fine when it gets to me. I am wondering what options I may have to keep the truck from limiting speed due to these issues until the issue becomes something that can be duplicated and tested. Would prefer to leave vehicle as factory as possible. I am not familiar with the programs on diesels. I pull them and read out of interest, but have never modified.

    Thank you

  2. #2
    Advanced Tuner Obsolete489's Avatar
    Join Date
    Feb 2017
    Yankton, SD
    As far as I know there isn't anything that you can change regarding the DEF, but I could be wrong. HP tuners doesn't allow for really anything emissions related to be changed for the diesels.
    2000 K2500 - 489 CI Vortec w/ comp XE270 cam - rear mount turbo in progress/testing
    1972 M35a2
    2014 Silverado 1500 w/ L83