I have a 2005 f250 6.0 lariat fx4. It has had problems with stalling while hot for a while and low boost. Took it to ford and they ran diagnostics on it. Told me it was a leaking keyhole gasket, a bad icp, and my ebp tube needed to be cleaned. I did all that, and as soon as I put the new icp in and drove it a quarter of a mile. It died and wouldn't restart. I unplugged the icp and no difference it will crank but not start. Called around and thought it was a hpop leak. So I did the stc fitting. Got it all back together primed the system and nada still nothing. I went and bought a scan guage 2. Icp is 1500psi cranking. Ipr is at 60%. Ficm main power is 48.5 cranking. I have ficm sync. Checked the ac compressor and all accessories, no locked pulleys. I have fuel pressure. And even checked the emergency fuel cut off switch. Please help haha. I'm about to pull my hair out with this thing.