fordman2121
New member
Just finishing up on putting the truck back together from the deer incident. While it was down I went ahead and installed studs in the head. Anyway its been in a running state for a week or so just wasnt driveable yet untill yesterday. It has had about 2 hours of idle time on it. I took it down the road and back and opened it up once, did great. When I got back and let it idle for a minute it just pettered out and died. Long crank and start then petters out and dies and wont restart or maybe start/die again. Now heres my question. What is the minimum cranking fuel rail pressure? I know 6.0/7.3 has a min before it fires the injectors but what about the 6.4? I have 4400-4500 while cranking then all of a sudden it starts and jumps up to 9-10000 for a second truck dies and frp drops. My AE is showing 1600 for the pulse width. What am I missing? sorry for the long post but Im new to the 6.4, I can fix a 7.3/6.0 with my eyes closed. Any help?