started off about 6 weeks ago truck quit 3 miles from the house. I got it back to the house and started down a path of figuring out what was needed. I watched a bunch of videos and found diesel ron. Initially I was only getting 350 psi on the hpop but the icp was bad so I replaced it and hoped, then did a bleed down which confirmed that the hpop was bad. I replaced the hpop and did the oil cooler while I was in there and got it all buttoned back up and still have no start. I bought an AE enhanced tuner (figured if I have to keep the truck for another 2 years it was worth it) I have ficm sync ficm voltage is >47.5 ipr is 14.7 - 84 ipc voltage is .2 hpop is > 600 The oil is fresh as are the fuel filters now some more goofy stuff,I have RPM on the scanner but not on the dash, I first thought maybe bad wiring or bad crank sensor but I have ficm sync. I have a vacation planned in two weeks and need this truck up and need to make sure its going to hold together. Any advice you can offer would be great.