Sorry to hear all your problems with the Coyote. I have a Gen 3 which we did an HP tune on the dyno. It has a couple funny things go on once in a while. Did you take it to the guy you referenced on your post from 10/26 ? Don't want to add to the confusion, but after working on heavy equipment all my life and especially the later machines with electronics I found many times the old adage K.I.S.S. keep it simple stupid. You get so many things going you have to go back to square 1 start there and eliminate as you go. I'm curious if your tuner guy was any help before I say any more.