No power to the fuel pump

I have been chasing this problem for while now. The car started for a few seconds when I sprayed ether into the throttle body, so I replaced the fuel pump. When that did not solve the problem I checked for power at the pump connection and replaced the fuel relay when I found there was no power. That too did not solve the problem.

I then check the crank and cam shaft sensors and found that the connections were frayed, so I also replaced these components. The car ran for a week after I replaced these parts, then it stopped working again. Same symptoms as before (cranks but it does not start). This time, just before failing I noticed that fuel level gauge and the fuel door release solenoid stopped working. Also, when I press and hold the fuel door release button and any of the master power windows with the key off the ignition, the windows go up and down. I have a feeling there is a short that involves the fuel door release door and the fuel pump, but cannot think where/why/how the two systems electrical come together.