The optima was parked for about 6 months. It starts for about 3 seconds and it shuts off. Checked the fuel fuse and is good. Has a new battery. Check the fuel pump wiring and is receiving 12 volts with ignition on and 12 volts when the car is cranked, and it's recieving ground. I removed the return line from the engine and fuel flows out. The check engine light is not on. The weird part is that I remove fuel fuse and it does the same thing as with the fuse on and the fuel pump still receives power.