2005 6.0 Wont start

[Threadgill]

Hello, ok so about a month ago my truck failed to start and it had some codes for low injector voltage. I checked the ficm voltage and it was low i replaced the ficm and had a local shop flash it. The truck ran fine for about two weeks. One day i turned it off in the drive thru to place my order and when i went to start it it would just crank. After it cooled it would start right up so i figured it was either stc fittings or oil stand pipe o-rings. I pulled it apart and replaced the stc fitting (it was loose) and new stand pipes w/ the back up o-rings, while i was there i also installed a bulletproof diesel egr cooler. So i got it all back together and all it does is crank. I hooked up the otc genisys to it and the icp pressure when cranking is only about 50psi, if you crank for an excessive amount of time you can get it to about 400. After doing this it came up with code po2285. Any ideas? Any help would be nice. Thanks!

[justinwdiesel]

your injection control pressure has to be 500psi at least to fire the injectors so 500 and above when cranking. did you drain the oild out of the high pressure manifold cause it might have air trapped in it take the take the icp senor out and see if there is oil at the top the check the left side head that side is a plug not a sensor

[justinwdiesel]

if your high pressure oil pressure is low dead cheack sensor and wires then dead head the pump if that isnt it while the oild feed line is off to dead head huie pump put shop air on it and llisten for high pressure manifold leaking o-ring head to case tubes or injector o-rings

[justinwdiesel]

your injection control pressure has to be 500psi at least to fire the injectors so 500 and above when cranking
check yor manifold head for oill cause sometime when u drain them they get air locked in them