I'm currently doing a 2015 LML swap into a 1953 chevy pickup. i have the truck all ready to start swapping but before i take the drivetrain out of the 2015 sierra wreck i bought from copart i went through to make sure everything works as it should. I am obviously removing certain items from the truck and not reusing them like def and the cat. i have hp tuners and was going through everything to make sure if i could and it seems either i am doing something wrong or hp tuners will not let you disable certain features on a diesel. Is this possible or do i need to find another tool to perform what i am trying to do? Thanks in advance for anyones insight/help!