Sorry for the late reply. Your reply was filtered to my junkmail box and I just found it. I don't have a fuel pressure gauge, but when I tried to rig up a generic vacuum/pressure gauge, it blew the hose off, so there is decent pressure. The pump itself is new, although I did not replace the whole module. I did replace the oil pressure gauge since my initial question, and there has been no change in symptoms. I don't think it's a fuel pressure issue, since it will start right up if I use a jumper to run 12v directly from the battery to the gray wire, and will continue to run when I remove the "hot" 12v lead. I suspect a sensor issue somewhere that is effecting the computer somehow, but I'm not sure how to diagnose that. I thought it might be a wire or connector problem, so I tried to run a new wire from the fuse box to the pump by splicing into the dark green/white wire in the fuse box directly to the gray wire before the pump. No change. The green/white wire has power at key on for about 2 seconds, so I'm confident both the new and old solenoids are working correctly. I do wonder though, is that wire the wire from the computer to the solenoid, or from the solenoid to the pump? If it is computer to solenoid, which wire would run from the solenoid to the connectore where it becomes the gray wire. There is no gray wire coming out of the bottom of the fuse block in the solenoid location that is gray, although there is a larger gray wire coming from another location on the fuse block.
Tuesday, October 2nd, 2012 AT 4:59 PM