The ECMB fuse that supplies 12v to the fuel pump relay blows immediately when you try to put in a new fuse. One side of fuse has 12v hot all the time as it should. The other side has continuity to ground. Tried another relay. I even tried running the 12v using a jumper wire from the fuse to relay. This gave me the 12v to the relay, but it still would not start. Wiring diagram from my Haynes manual shows a fuel pump oil pressure switch as part of the same circuit.. I have no idea what or where this thing is. Diagram says its "typical" and was specific for 1994 and earlier. I dont have anything specific for 2003.
Any specific wiring diagrams for 2003 out there? Next thing I can think to do is pull the fuse block and check for any bad wire insulation. Possibly chewed on by a mouse or something. Thanks. Eric.

 

You need to unplug the fuel pump connector and see if the fuse blows.

 

Tried that. Still blows. I'm certain the short is between ECMB fuse and the fuel pump relay. With diagrams that I have, this fuse also powers the Powertrain Control Module. Tried one of those, no help. Car is at a shop now and they cant figure it out either.