not to be a knucklehead but I do not understand how anybody can tune an engine for you via a mail order, LOL... yes your truck will start and run, that's because these PCMs can pull you in from being as high as +25% or -25% off, but that's not efficient by any means
from what I have seen with folks asking for help with their post mail order tunes and the black magic that went into them by some stranger miles away, they would have saved more money by buying HP Tuners ($300) for themselves plus paying ($100) additional to license / tune one vehicle ~ buy once, cry once!
there is an abundance of YouTube videos, articles, and forum posts on how to get started, not to mention an excellent
HP Tuners Tutorial on here, ha ha
not being rude, just saying you can do it!