If you take off the fuel governor you can manually move the rail and it will run.the test to check a code 2 is to check amp draw to governor should be 2amps while cranking.I am getting no amps so replaced governor still code 2 for circuit shorted or open.I have power and ground to module and voltage coming out of module.Does it need the filters replaced? If you take a fuel line off does fuel gravity flow out of the tank? Does it have a lift pump and if it does is it working? Does it have a fuel shutoff solenoid and is it working? Plugged out let from fuel tank? Plugged or collapsed fuel line? So many possibilities we need more info.
It is a electronic governor.wires from module to governor check goodA bad wire somewhere. It’s an electronic governor?