it wont start

[nicrw]

I need some help with my ‘04 ford F-350 powerstroke it was almost two years ago that the truck had an issue I was out of town and stopped to fill up with diesel and was on my way back home when about 50 miles after leaving the truck stop after filling up doing about 65mph it started running real rough and started knocking and lost power before I could get on the side of the road it died. It would start but would only idle and would die if I tried to give it throttle; I then called a tow to the nearest dealer and they ran the codes on the computer and they replaced the fuel pump and filler then they were blowing air through the crank case and then they had said that they were going to have to take apart the high pressure oil pump to see if it was bad. I had no more money at the time so I had to bring the truck back home then it sat for about 6 months when I got to working on it again I when in to pull the HPOP and pulled it and the PIR and took them down to a different ford dealer where they told me that they looked good but replacing both would cost a lot when I explained other things like the oil well under the oil cooler was dry they suggested I look at the LPOP and it was scratched but I think it was alright but replaced it and the housing I then pulled the stand pipes and dummy plugs and IPC since I was there and put it all back together only thing not replaced on the oiling system was the HPOP and IRP I also drained and cleaned the fuel tank ,I barrowed a computer code reader and tried starting it and it kicked a code P121 but I removed the air filter and trying again now no codes are showing but it just cranks does anybody have any more ideas?

[midnite]

Did you put the stand pipes back in their original position? Long in the rear and short dummy plugs in the front. I've seen this mistake before.

[nicrw]

you are talking about the "pulgs" in front and the pipes in back? I put the passager side in and pulled the driver side and it came out in two pieces so it looked right so I put it in one piece

[midnite]

On the high pressure oil rails under the valve covers.

[midnite]

Long ones have to be in the real

[Lilpooh]

Lots of info on this link.
Troubleshooting a No-Start condition

[nicrw]

ok I have it right then have you heard of anything else that might keep it from starting or could the HPOP still be bad?

[midnite]

It can take alot of cranking to start. You may need to hook a charger to the Batt's in boost mode. Crank for 20 sec at a time. should start after around 3 or 4 cranks

[midnite]

When your cranking,do you have any pressure on your pressure gauge? The gauge is for your low pressure pump.

[nicrw]

what about the fuel cut off switch would the fuel pump still come on when key comes on if the switch needed to be reset?