If you find a blown fuse check the wiring harness at the injectors and make sure they have no exposed wiring that the air cleaner might be blowing when it is put on.
If you find no blown fuses, If you look by the fuel pump relay you will find a single red wire with a black connector. That is a test lead. If you apply 12v to it the pump will run. If it runs then the wiring to the pump is okay. But this vehicle since it was running before I just don't see any Relay of PCM problems.
If you have fuel under pressure, spark, injector signal, then you may have a problem with injectors stopped up. When you pulled the tank was it good & clean inside? Fuel look good, no signs of water or anything else?
Very seldom have I had to replace injectors unless they were contaminated from bad fuel (excessive water or someone dumping other chemicals in the tank). You might want to take a fuel sample in a clean glass jar and let it sit for a while to see if it has anything in it.
When they tested your pump did they do it with a fuel gauge? Had it completley quit running or just running poorly? Pull a plug and see if it's burning clean or it appears to been burning something else.