Fuel pump wont turn on any ideas/ecu controlled?

[67ragtp]

I also Posted this in the project section hoping for a look today. Well today was to be the first fire up of the ls7, unfortunately the fuel pump(ricks gs340) doesn't want to turn on. The computor is an e38 and when the key goes to the ignition I get 12volts at the pump for 3 seconds then the voltage goes to zero. The problem is while the voltage is present I dont here the pump running. The strange thing is when I bought the battery a week ago, I hooked it up with a dry gas tank, and turned the ignition one click to far and heard the pump growl for a second or two and immediatly shut it off and pulled the pump fuse to check the rest of the electrical system. Now the tank has 12 gallons in it and it dont want to turn on, I cant believe I could have damaged the pump with a momentaty turn on dry. If you guys have any ideas what to check I would appreciate it.