2000 Other Jeep Models fuel

Hi I'm having problems with my 2000 Jeep Grand Cherokee. It won't start, I have a pocket scanner and it indicated that multiple cylinder where misfiring started by changing the spark plugs, that wasn't it. Tried changing the coil rod and that wasn't it. Tried changing a few senors:cam senor, crank senor, throttle position senor. I pulled the spark plugs out they seem to have a lot of gas on them so I cleaned, checked the gap and reinstalled them and the vehicle started but was running rough. After that the vehicle wouldn't start, checked the fuel line with the key turned forward and a little gas dribbled out and that was it. I changed the fuel pump and still nothing, checked the fuses and relays. Really I was ready to change the computer, but before I waste any more money I was wondering if you could give me any advice on why this vehicle wouldn't start. Thanks for your time.