Try this power the fuel pump connector from the battery and see if it'll turn On.
December, 1, 2011 AT 8:16 PM
I have power to relay (orange wire) no power coming out when cranking or not if I put power to red wire the pump runs if I put power to gray wire the pump runs if I put power to green wire the relay works sends power to pump through the gray wire red wire still no power and truck still wont start when I do any of this. When cranking over the engine my oil gauge comes up with preasure so I figure the oil switch is ok is this true also if I spray fuel in the throttle body truck will run thanks for your time helping me with this problem
December, 1, 2011 AT 8:20 PM
The computer might not be grounding the fuel pump relay coil side-also test the OPSU