2000 international 2574 shuting off and wiring issues

I got this dump truck and seems like a wiring issue im having. truck runs great when it does run but the truck will just shut off like i turned the key off. and sometimes i can crank it up right after and it will run a few seconds or a few minuts and do it again. i was able to run the truck the other day for about 4 hours.
things ive done, new engine position sensor, fuel lines, fuel filters, dropped and cleaned fuel tank, cleaned every ground i could find, 136 psi fuel pressure at idle, 0 psi fuel restriction and fuel check valve cleaned .

i will be changing fuelshutoff solenoid monday. it has 12v going to it even when truck shuts off randomly. it has gotten hot a couple times, hotter than i think it should. I maintain fuel pressure till truck shuts off with 12v still going to fuel shut off.

My gauges sweep and lights come on like they are supposed to when i turn the key on so i think my ecm is powering up correctly.

i noticed today that my running lights randomly come on with the truck sitting there. it was raining today, not sure if that could be related to this truck shutting off.

DOES ANYONE HAVE A WIRING DIAGRAM FOR THIS TRUCK?
ANYONE HAVE THIS PROBLEM BEFORE

 

Sorry, its a n14 celect plus

 

haven't figured it out yet, testing injectors

 

no not yet on the ecm. had a highly recommended mechanic hop in and drive with me couldn't get it to shutoff after new fuel shutoff solenoid but it would keep missing and he said it sounds like a stuck injector with this rattling noise it made when it missed. also getting alot more fuel return then I should from what he said.