My cousin has a 2016 LML with a sportsman cp3 conversion, Airdog, and Marks tunes. The truck runs great except it defuels so hard and long before each shift you will almost hit your head on the windshield. No codes, I bet it cuts fuel for a full 1.5 - 2 seconds between shifts, no exaggeration. Any ideas? I'm going to email Mark tomorrow I just thought it might be something simple I'm overlooking.
