Crank no start changed fuel filter & cleaned water separator?

Fires up then dies right back out. Batteries are charged, reprimed again cracked injectors im getting spray, still no start??

Its a 2000 izuzu Npr intercooled turbo diesel box truck.

When was the last time you filled it in terms of when this started and where? I would start by getting a sample of the fuel and testing it. Wouldn't be the first time for contaminated fuel. The NPR has also had issues where the rubber fuel lines get degraded and will collapse internally and stop fuel flow. Normally you can feel this if you squeeze the lines, the bad ones will be VERY soft. Also there have been issues with them drawing air into the lines. For that using a temporary piece of clear line between the filter and the tank to look for air bubbles. It would also tell you if the pick-up in the tank has an issue, they can fail. It's also possible the pressure regulator has a problem, for that you need a scan tool to look at the pressures in the system.
I had one as a roll back for a while. Dealt with bad lines and a bad pick up as well. On mine the top of the tube developed pin holes so it would suck in air and lose prime.

So im broke down still from this on the side of the road in Jackson Nj. Ive checked all the fuses, ive primed it so many times its not funny. I pulled the banjo bolt with screen ( it didnt look clogged) but cleaned it with brake clean, even tried bypassing the tank completely with a diesel can and still cant get it to fire on its own. But since im desperate and already missed multiple says of work I sprayed it with starting fluid and it fired right off, then died. I had to verify cause this is driving me crazy. Any help will be appreciated. A further note my fuel gauge hasn't worked since I bought the truck and im almost positive I have just less than a half tank. I bring this up because I tried to add fuel from my can and it wont accept it. Filler neck fills uo and overflows. Could this be affecting my stalled now cranking no start issue??

Okay, lets run the codes to see if any are stored, also did you check the fuses? Here are two videos to see what is going on.

https://www.youtube.com/watch?v=LBCpCWEFnTg

and to check the fuses.

https://www.youtube.com/watch?v=G-xNK79Wa-w&pp=0gcJCSsMAYcqIYzv

This can be a bad ECM.

Yeah, that's a fuel issue. Does your truck have the manual shut down or the electronic version? I would verify it didn't move to shut down. I had a cable fail on one and it wouldn't start. The only other item would be if the pump or rack has a problem. A test of the pump might be to hook up and external pump between the tank rack. If it starts and runs the pump failed. There are places that rebuild those.

How and where can I hook up an external pump to test it? I have the main fuel tank bypassed already with a 5 gallon diesel can and a marine primer ball. Its still not starting. If you can send me a link to a video id really appreciate it.
Also I read something saying an " angle crank sensor"if it fails id get the same symptoms but I dont see it by the flywheel? Any ideas on that would help also