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Do your testing at the fuel pump relay with a computer safe diode testlight that shows ground or power. You should have 2 sockets with power with the key on. One will be to the pump and that should read ground also. The 4th terminal will be the trigger ground from the computer. that's the signal that turns on the pump. You should get a ground signal at that wire for 3-5 seconds when the key is first cycled. That's the only period of time that the pump turns on when you turn the key on. You can test you pump by just jumping the power with the terminal to the pump and it should run. I'll look for a schematic for you for color codes. OK, as you can see the wire to the Inertia switch and then the pump is Org/LtBlue. The feed power comes from a fusable links and is yellow. The control power lead is red and comes from the EEC relay, and the computer trigger is Tan/Lt Grn. Jump the yellow to the Org/LtBlue to test the pump