i bought this !30.000 mile 1985 500 sec from a lady who said the car ran when she parked it 2 years ago. the car will start on aresol starting fluid only. i disconnected the fuel line to the injection unit above the intake mannifold and i don't get fuel .i do have power to the fuel pump and i replaced the fuel filter. what can i do ? should i replace the fuel pump ? and how do i do that with out dumping gas ? Terrio