tootsieroll

Hey guys I cam having a problem that I need help with. As the title says I have a 94 toyota pickup that wont start. The motor turns over but wont run. I have spark and fuel in the tank. I have tried everything I think. I have tried jumping FP to B+ on the diagnostic port and I got it to run once. I have also tired holding the flap open on the VAMF sensor on top of your air box. You can hear the fuel pump run and the engine turns over but wont run. The only thing I didnt replace is the opening relay on the passenger side near the kick panel. One weird thing is when I prime the truck with starting fluid it will run and keep running which leads me to believe I dont have enough fuel pressure which I cant test cause I dont have a regulator to test that. Is the pump just going bad. Any help would be great thanks.