So to start with simce january ive put 8 pumps in my truck (01 f550 with 6.8 v10) 6 were burnt up due to low voltage. Repaired wiring all was good. The other 2 were due to a failing fuel tank liner. I replaced the tank and went to start the truck and it would start and run for a minute then die. Fuel pressure test shows 20psi then drops off (obviously low) i tried a couple new pumps with no change. (The fuel pump relay, inertia switch and fpr are all new). When it starts if i hit the gas it immediately dies off....does anyone have any ideas? Its not a fuel pump electrical fault as i have good power througgout the crank and start.

 

Sorry wrong group