bush- its a 06 f250.
ashmass- we know that you have battery power and no DTC's. we know that you are not getting fuel delivery..... just to rule it out, you checked your fuel filter? pop the cover, check the filter and maybe suck the bowl dry. then bump the key to see if the bow is filled up. just a bump.
i hope i did not give you any false hope. 6.0L HPOP is on the back of the engine in the block. i am not sure if you can check it like the 7.3's. my bad.
like royboy said, you should be able to check the HPOP pressure, even under cranking with the AE software. i don;t know AE, so someone else needs to tell you which panel to check. if you get 500 psi or more i think we can rule out the HPOP and HP oil system. you can read any of the sensors with AE, trick is finding them in the software.
like bush said, the ICP could be suspect. you did have some of the injectors out right? #6?
http://www.superdutydiesel.com/forums/showthread.php?t=6519
there is a sensor on the back of the passenger side valve cover, its the Injection Control Pressure sensor, ICP for short. should have 3 wires on it. it might be worth checking that to make sure its connected right and no breaks in the wires.
it is unlikely, but if you nicked one of the injector HP oil o-rings, that too could bleed the HPOP pressure. so if you get low HPOP pressure, it might not be the HPOP. i think the way to check that is to pull the valve cover, and look at the injectors while someone is cranking the engine over. can any one confirm?
i think that the tech was trying to get you to check the IPR cleanout. that the Injection Pressure Regulator. I don't know where it is on the 6.0. maybe bush or daveben can help you rule that out.
you don;t have any visible oil leaks do you? there are some crappy pot metal fittings on the back of the HPOP. Branch fitting is the term i think of the fitting that cracks/leaks most often. its tough to get to, i think you need an inspection mirror to look at.
i know that getting parts to you is tough and time consuming, not to mention expensive (i am afraid to ask what a beer costs). don;t neglect your IH/Navistar dealer as a source for common parts like orings and ICP sensors. trick is getting the parts guys to cross the numbers. you WILL need the engine serial number which is engraved on a boss on the drivers side of the motor. i think its by the oil filter housing on the block.
hang in there, be patient and DON'T get paranoid.
dennis