Car ran fine when taken to my brothers to do a bunch of work. We installed a new Racetronx dual fuel pump system with new -8 and -6 fuel lines. Also installed new stock location intercooler, dual fans, transmission and intake reseal. Car will immediately start but only run for 2-5 seconds and die. It sounds smooth when it starts. I verified fuel pressure both running and key on to prime. Tried another known working ecm, map sensor, new plugs, and unplugged the maf to no avail. I did hot wire the fuel pump using the old jumper lead trick like when we drain our tanks. This made it to where I could crack the throttle constantly and keep the car running but the second I disconnected the jumper lead it died. Car is e85 and we added 5 gallons of fresh e85 to the tank. Any ideas appreciated