Results 1 to 2 of 2

Thread: Changing tire size on efi live truck with hp tuners

  1. #1

    Changing tire size on efi live truck with hp tuners

    Hello, I have a 06 cummins with efi live currently on the truck. Can I go in with hp tuners and change the tire size with out messing up the efi live tuning

  2. #2
    Tuner in Training
    Join Date
    Dec 2017
    Posts
    29
    yes it reads the tune off as it is so when you write it back it will have your changes that efi live made
    this is only different on newer cars that have encrypted tunes or cant be read only written for 06 your fine