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Hello, the fuel pressure is to be 60-66 psi and not only 14 psi. the test port on the fuel line/rail is not on the return side but on the pressure side. if you only have 14 psi at filter, suspect bad fuel pump or one leaking back.You need to see 60-66 psi at the Tb
Circuit Description When you turn the ignition switch ON, the Vehicle Control Module (VCM) turns on the in-tank fuel pump. The pump remains on as long as the engine is cranking or running and the VCM is receiving reference pulses. If there are no reference pulses, the VCM shuts off the fuel pump within 2 seconds after you turn the ignition ON or the engine stops. An electric fuel pump pumps the fuel through an in-line filter to the Central SFI unit. The pump is attached to the fuel level meter assembly inside the fuel tank. The pump is designed to provide fuel at a pressure above the regulated pressure needed by the injectors. The pressure regulator keeps the fuel available to the injector at a regulated pressure. Unused fuel is returned to the fuel tank by a separate line. Diagnostic Aids Tools Required, J 34730-1A Fuel Pressure Gage in J 34730-E or J 34730-IA Fuel Pressure Gage with J 34730-250 Fuel Pressure Adapter Kit.
you keep telling me to check the pressure, but if there is nothing at the test port/bleeder, what is a gauge going to do? talked to my Dad today & he said put a hi pressure (90psi) external pump in between the filter & the motor, we both tend to agree that it is unlikely that the line could be so clogged as to not allow even a small amount of fuel, will an external pump work or have u ever seen this done?