My 96 Isuzu Rodeo sat for seven years

Its a 1996 isuzu v6 3.2l front wheel drive only turns on when spraying starter fluid in air intake. I replaced fuel pump&filter. I don't have a fuel gage to test perssure. I reinstalled fuel tank clean and bone dry. Tank now has 10gal. Of gasoline exactly, is that enough? I don't want to fill more than I have too in-case I have drop tank. Light is on and gas gage reads empty. Can I do an ohm reading on fuel pump wires where I can find easy access? If so how? I have a multi volate metter w/ all the functions. What senors and relays should I test before calling the fuel pump defective? I removed the fuel line after fuel filter. I didn't think it would have pressure but it did (very strong) but it my have just been build up pressure from trying to start engine. I reinstalled fuel line and started engine w/ starter fluid thinking engine just needed help to get going. It shuts off as soon as stater fluid burns off. I removed fuel line before filter and tested fuel pressure by placing fuel line in a gas container I whatched the flow and pressure as engine was turning over, it looked ok but not sure. How do I know if I'm having a fuel injector problem? My obd2 won't scan no voltage to pin connector fues and relay ok. So I need help troble shooting. Thanks