I have a PC 220-6 and the govern motor is not working correctly, it is just vibrating. I traced back most of the wiring harness, we unbolted the cap and moved it to the side. The wiring harness looks pretty good, I checked all the diodes in cab and they're all good. I fixed the EO8 plug in the harness, it was not the allowing the speed sensor to work correctly. The pump controller green light stays lit but the govern controller blinks the green light. If I turn the key on, the light stays lit, as soon as I turn up the speed control and then turn it back down, it starts flashing.
Right now the only code I have in the monitor is E316. If I turn the machine on and hold the injection pump open a little bit and run the machine it goes in and out limp mode. If I raise to boom up and down, sometimes its fast, or slow. I noticed if its moving slow and I touch the track pedals it goes fast again. Also, I replaced the speed control potentiometer because when I tested it with the multi meter, if I tapped it, it was giving me different readings.