lmm duramax

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    09 LMM white smoke

    I have a 09 Chevy duramax lmm and smokes sometimes on acceleration. Smoke usually white and sometimes black. Truck is not tuned or deleted, completely stock. It has also seemed to be asking for regen more often. IPC states to regen and see owners manual. Performed regen with scan tool and...
  2. S

    LMM tune help - WILL PAY$$$

    I am very new to tuning and am trying to learn how to tune for the sole purpose of messing with my 08 LMM as well as some of my buddies duramaxs. I am 16 and just trying to figure out a couple of things within the tune file ( I use EFI Live) such as hard cut limiters and other various fueling...
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