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Thread: LBZ GPCM change

  1. #1
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    Default LBZ GPCM change

    Hi I need to change out my Glow controller on my LBZ but not sure on how to re-link the new GPCM to the ECM, please keep any advice "simple" still new at this game and using a V2 with laptop

    Regards Bruce
    Regards Bruce

    Nissan GU Patrol
    06 LBZ Duramax, Allison trans
    Transco JR kit and pump pressure upgrade
    EGR removed, custom made inter-cooler pipework, DP5 switch

  2. #2
    Forum tyhee Site Admin GMPX's Avatar
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    I think you might need it programmed via GM TIS first (assuming it's new).
    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
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    I should of mentioned that it was a second hand GPCM and I am running a set of non stock tunes (DP5)
    Regards Bruce

    Nissan GU Patrol
    06 LBZ Duramax, Allison trans
    Transco JR kit and pump pressure upgrade
    EGR removed, custom made inter-cooler pipework, DP5 switch

  4. #4
    Forum tyhee Site Admin GMPX's Avatar
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    If the GPCM is used then I think the V2 can do what you need, plug it in to the OBD-II port.
    Press F2 - Tune Tool
    Press F2 - Injectors
    Press F3 - Read ECM Inject
    Press F2 - Program GPM Inject

    That should read the stored values in the ECM and program them in to your new (used) GPCM.
    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.


  5. #5
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    Thanks
    Regards Bruce

    Nissan GU Patrol
    06 LBZ Duramax, Allison trans
    Transco JR kit and pump pressure upgrade
    EGR removed, custom made inter-cooler pipework, DP5 switch

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