I'm trying to determine if the fuel pump is out on my '87 IROC. I tested the fuse and relay--both were ok. I then probed terminal G with a test light to make sure that it was ok, but could get no power. I finally tried a jumper wire from the ignition to the terminal in a last ditch effort to power the pump. Still nothing.

Any other ideas?

 

If you're not getting power to the pump it obviously won't work, check everything you can on the way there. There is a connector under the car, near the differential. This is the last part you can check that sends power to the fuel pump. Sit under there and see if it is getting power while someone turns the key. If it gets power and your pump does not prime, it is probably bad. If you don't get power, work backwards from there.