Zr1 fuel pump 1 not working

[Crazytruk]

I have a 1990 zr1 that sat for a few years. I changed injectors and fuel pumps. The car starts and gets up to a certain temperature and loses fuel pressure and stalls. When I start the car cold and I pull the fuse from the block under the passenger side dash it loses fuel pressure and stalls. I do not think this should happen because the fuel pump one should keep pressure and keep it running. I connected the Lead coming out of the firewall to the positive on the battery and still no change car still stalled when it got warm.
Any Ideas?
Mike