So, I have a 2000 Z with the 5.3. I ran the truck out of gas like a dip**** and had to replace the fuel pump. I yanked the bed off, replaced the pump with a new one ($300, REDICULOUS). I went ahead and changed the relay/fuse and filter while I was wrenching. Now the pump won't pump. It is the second brand new pump I put in her. I had the same problem with the 1st pump I bought and assumed the pump to be faulty. I bought a multimeter only to find that I'm not getting power to the pump. I can't figure out why. Any suggestions? I've tried "reseting" the sytem by disconnecting the neg. battery cable for some time, then reconnecting it.

 

You might have to start tracinig the wiring for open ,shorted , or corroded wiring Check the fuse as well..

 

The wiring all seems fine. Looks stock. I can't help but think it's some sort of computer problem

 

It's possible but I would be surprised.

Have you checked at the relay to see if there is power to and from it ?

 

You can't test wires by looking at them; break out the old multimeter and go to town.