I need a hand narrowing down where to start on this 6.0. I recently replaced the ficm and hpop and everything seemed fine. Today i have a crank no start. Ficm is solid got sync but ipr is maxed at 85. Icp does build quickly and holds at 650. Hpop only has 50 or so miles on it I doubt that's the culprit. I wonder if I have a stuck ipr? Anyone have any thoughts.