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Thread: LWN 2.8 diesel GMC support?

  1. #1
    Tuner in Training
    Join Date
    Jul 2020
    Location
    Ohio
    Posts
    17

    LWN 2.8 diesel GMC support?

    From what i can see on the supported list the gmc canyon/chevy colorado with the 2.8L duramax LWN turbo diesel are only supported for years 2016 and 2017. Im looking at getting a 2019. is EFI live the only option? how come HP tuners is 4 years behind of this motor?

  2. #2
    Potential Tuner
    Join Date
    Mar 2021
    Posts
    4
    If you get any more info please document it. Info on these trucks isn't as available as we would like it to be.

    I had to contact hptuners to read my 2018, I had to use the latest beta for it to read. So they can read the newer locked computers fine, do they just not show as many parameters as efilive?

  3. #3
    Tuner in Training
    Join Date
    Jul 2020
    Location
    Ohio
    Posts
    17
    So ive been in contact with support for over a month now waiting for them to unlock my ecm/ make the file readable? not sure it threw an error after i saved the file and tried to read it. They said they can fix it but are taking a very long time.

    Had to get the beta version and manually set the ECM to E98A. TCM auto detected so that was good. It saved a copy of the file i just cant edit it yet while i wait for HPtuners. Not sure what it will be missing once i get it back. also not sure if i can flash a older 2017 or 2016 OS/tune onto the newer truck without issues. Those were E98 not E98A. not sure the differance but there must be somthing.

  4. #4
    Potential Tuner
    Join Date
    Mar 2021
    Posts
    4
    Not sure what the communication issues you're having with support are...they had the latest beta reading my truck the next day after I emailed them the proper logs and files requested.

  5. #5
    Potential Tuner
    Join Date
    Dec 2021
    Posts
    1
    I have a 2018 Colorado ZR2 and the ecm reads and writes fine, its the tcm I cant read.