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  1. Technical Questions / Tips / How To
    Hey all, So I have a 2017 Colorado Z71 CCLB with the 2.8LWN that has been deleted and tuned. There was what was explained to me by the tuner as a “hidden” code about the DEF Fluid, and when the tune was flashed even though it was unknown the code was there, it wound up popping up to the DIC...
  2. Diesel
    Alright it’s 2019, the EPA is making it really hard to make my dream off-road truck. I currently have the Duramax Tuner DSP4 tunes, and now I wanna delete and re-tune for the delete. No one around Indianapolis will/can do it. I have an exhaust sitting in my barn to put on my 2016 2.8L Colorado...
1-2 of 2 Results