Hi I have the same problem it will start when fuel sprays in the throttle body all day long and then go to start it again and no fuel and I have to spray starting fluid .I also noticed when I turn the key on the oil pressure pegs high. While Im trying to start the engine it jumps back and fourth and after it starts the pressure is fine. I have changed the following fuel pump,filter,distibutor,coil,sensors,starter, Thanks Frank

Your problem may be the fuel pressure regulator,located on the end of the fuel [rack] just before the injectors.the reason the oil pressure jumps is because the motor is'nt running right.spraying starting fluid into it may cause engine damage, such as a blown head gasket,engine piston rings collaspe,it take 180 pounds of pressure from the fuel pump,just to run the engine right. you're problem may be there,or a restriction in the fuel lines, such as sucking air before the fuel reaches the engine, look for a pin hole in fuel line. seen any fuel in parking space? try cardboard under truck at idle, when not in use. suggest also lucas fuel treatment in gas tank, you may only have a blockage in fuel line due to ethanol gas! hope this helps and as always there are online chats,phone support, and e-mail help with fixya.com merry christmas from me and mine to you and yours!!