Welcome to the forum. Sounds like it could be a couple things but more diagnosis needed. You will get lots of good advice and suggestions.
My first guess is maybe the HPOP reservoir is maybe leaking back. You can take the plug out of the top and check oil level to see if dropped. Second could be to unplug the ICP and try it.
If you have someone close by with software (AutoEnginuity) to scan while trying to start will help. Others will give help here also.
2001 F-250, 4X4, SWB, 7.3L, Crew Cab, MBRP 4" exhaust, Tymar intake, Swamps 175/146 single shot injectors, Driven Diesel Regulated Fuel Return, PHP Hydra Chip, Mechanical Waste Gate, Gutted EBPV, Deleted EBPV Pedestal, BTS tranny, 6.0L tranny cooler, RedHead steering box, Plenum inserts, RiffRaff upgraded clamps for intercooler boots, RiffRaff intake sleeves, CCV bypass from RiffRaff, boots from RiffRaff, Ride Rite Air Bags, Guzzle's Monster Relay mod, 1.0 A/R turbo Housing.
1996 F-250, 4x4, SWB, 7.3L, Supercab, Tymar, AFE Big Bore 4" exhaust with 3"-4" DP, Swamps 150/146 Injectors, PHP Hydra Chip with Swamps tunes, Terminator T500 HPOP, Beans D66 Turbo, HPX Crossover, EBPV gutted, EBPV Delete Pedestal, shimmed FPR, Carr Hoop Steps, Cab Lights, Limited Slip 4.10 rear end.
2002 F-250 4X4 Extended Cab Short Bed California truck, AFE 4" Exhaust, Tymar intake, Leveling Kit, Swamps 175/146 Single Shots, HydraChip with Swamps Tunes, Wicked Wheel, Mechanical Waste Gate, Gutted EBPV and deleted pedestal, RiffRaff intake sleeves, RiffRaff boots and clamps, BTS Transmission and 6.0L cooler.
2002 F-250 4X4 Extended Cab Short Bed, Swamps 175/146 single shot injectors, Hydra chip with Swamps tunes, RiffRaff FRx Fuel regulated system, 1.0 A/R Turbo Housing with high flow outlet, BTS Transmission with 6.0L cooler, 4" Exhaust, Tymar intake, RiffRaff boots and clamps, Wicked Wheel