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Thread: 2007.5 Silverado 2500 6.6l lmm reduced power mode

  1. #1
    Potential Tuner
    Join Date
    Sep 2009
    Posts
    8

    2007.5 Silverado 2500 6.6l lmm reduced power mode

    Hi, anyone have a datalo of a stock fine running 07+ duramax and layout.
    This truck doesn't show any code, and hapenned after a engine swap for repair

    Thanks

  2. #2
    Potential Tuner
    Join Date
    Apr 2020
    Location
    GA
    Posts
    2
    From the stock side of the LMM, usually reduced power comes from EGR , Tubo and low fuel delivery data. It sounds like the concern was introduced by the swap some how. Revisit connectors and basic fuel pressure and vacc readings as neccessary.