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Thread: 2017+ Express van 2.8

  1. #1
    Lifetime Member DURAtotheMAX's Avatar
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    Default 2017+ Express van 2.8

    Ross, have you looked at any 2017+ diesel Express van cals? They discontinued the 6.6 dmax in the vans for 2017 model year and now use the 2.8 coupled to the 8L90 8-speed.

    The main OS is 55488073.
    2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison
    12.9s @ 108 mph

    many thanks to Ross and Paul

  2. #2
    Forum tyhee Site Admin GMPX's Avatar
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    Yes, they are quite different to the Colorado and will be a real pain to map so it hasn't happened yet. The code they run is closer to the Opel and Cruze would you believe (which also hasn't been done due to lack of enquiries).
    Need official EFILive help, please go here.
    For tuning support please post your questions on this forum (or other auto forums).
    Sorry if I don't respond to your PM, don't take it personal.


  3. #3
    Lifetime Member DURAtotheMAX's Avatar
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    Quote Originally Posted by GMPX View Post
    Yes, they are quite different to the Colorado and will be a real pain to map so it hasn't happened yet. The code they run is closer to the Opel and Cruze would you believe (which also hasn't been done due to lack of enquiries).
    Weird, I wonder why GM did it that way?

    Is the 2.8 Express van ECM locked down like the new Cruze 1.6?
    2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison
    12.9s @ 108 mph

    many thanks to Ross and Paul

  4. #4
    Forum tyhee Site Admin GMPX's Avatar
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    When you say locked down I'm not sure what you mean, they are still running just normal E98's with the 5 byte seed/key (but no SHA signatures like E41).
    Need official EFILive help, please go here.
    For tuning support please post your questions on this forum (or other auto forums).
    Sorry if I don't respond to your PM, don't take it personal.


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