1994 F-150 XL 4.9L V6. Other than the Engine, I have replaced everything but the fuel pumps, fuel injectors and the Transmission Control Module. After replacing the ECM she drove like a dream. I let the fuel get too low and she was cutting out so I switched tanks, that one was also low and she cut out. The front tank gauge does not work. I made it to the gas station and filled her up and drove home. She sputtered a few times and cut out in the driveway. Now she will only crank but not start. The fuel pumps kick on. I changed the fuel filter. The Schrader Valve flows gas when pressed in. I sprayed starter fluid in the throttle body, still cranks but will not start. Any suggestions?