Hi every one, i am new here in this forum found amazing threads from amazing people so i decided to join.
Back to my question, i have 2023 expy that i want to tune but jb4 didnt work and my truck became significantly worse so i am just stuck with a jb4 sitting on my drawer (tried to contact them but their solution was to try better fuel -getscammed-). So only option is pcm swap.
The thing is i dont know anyone nearby whom i can reach too for the programing of the new pcm.
My questions are: can i program it my self using frds? Will the original pcm lose its functionality if i unplug it or something?( just in case i failed the programing so i can replug it like nothing ever happened).
Back to my question, i have 2023 expy that i want to tune but jb4 didnt work and my truck became significantly worse so i am just stuck with a jb4 sitting on my drawer (tried to contact them but their solution was to try better fuel -getscammed-). So only option is pcm swap.
The thing is i dont know anyone nearby whom i can reach too for the programing of the new pcm.
My questions are: can i program it my self using frds? Will the original pcm lose its functionality if i unplug it or something?( just in case i failed the programing so i can replug it like nothing ever happened).
