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Thread: 2004.5 LLY can I use 2006 LLY tunes?

  1. #1
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    Default 2004.5 LLY can I use 2006 LLY tunes?

    I have a buddy that has a handful of tunes from his old 2006 lly twin turbo. I wanted to know if I could use those tunes on my 2004.5 lly with twin turbos. We used the same MPI kit, but I upgraded to the 480S vs the 475.

    Will I have ecm issues, or will the tunes work?

    Thanks
    Chris

  2. #2
    Lifetime Member THEFERMANATOR's Avatar
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    06LLY is a LBZ for all intesive purposes, so no they will not work.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

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    Quote Originally Posted by THEFERMANATOR View Post
    06LLY is a LBZ for all intesive purposes, so no they will not work.
    Can I copy the tune file set ups? Basically look sat the configuration and adjust the LLY accordingly?

  4. #4
    Lifetime Member THEFERMANATOR's Avatar
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    COMPLETELY different tuning strategies as they work completely different from each other. 04-05 LLY is a DELPHI ECM whereas the 06 LLY/LBZ is a BOSCH ECM. The DELPHI does everything in fuel calculations where the 06 LLY works entirely on a torque based calculation.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  5. #5
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    Quote Originally Posted by THEFERMANATOR View Post
    COMPLETELY different tuning strategies as they work completely different from each other. 04-05 LLY is a DELPHI ECM whereas the 06 LLY/LBZ is a BOSCH ECM. The DELPHI does everything in fuel calculations where the 06 LLY works entirely on a torque based calculation.
    I appreciate your help on this. Yesterday afternoon, I saw exactly what you described. I am loading the speed, tire size, and gear ration changes.

    I am also throwing a mas air flow sensor code. - do you if I can copy these parameters to get the code to stop coming back. What is also crazy, I am setting off 1 MAF, and 3 EGR codes -but no check engine light? I would have thought a check engine light would have set.

    Here is my thought:
    1. - calibrate
    2. get codes to stop being thrown
    3. get the final tunes

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