94 trooper no start
 

Hey all. Haveing a bit of a starting issue with my trooper. Sometimes it starts sometime not. It was running fine, turned it off and now no start. Wait a few hrs and it started, then it became a few days now its hit or miss. I sprayed starting fluid in the intake and it starts and runs as long as u spray fluid. So i have spark and timing is fine. I checked to hear the fuel pump running and did not hear it. I dropped the tank and replaced the pump. Still a no start. I will check for power to the pump today. But i assume it has power as it does start occasionaly. Is there anything that causes a signal to send power to the pump that could be bad? Clogged fuel filter or pressure reg? I replaced fuel relay already as well. Any ideas thanks..