Vicstruckservice

Hello, I’m interested to see if someone has a used ECM or information on testing a 12MS51M7 for a VMAC I engine. It’s acting like there is no power to the ECM for the emergency shutdown system. I was wondering if someone had a wire diagram for this ECM because Im not sure where the power supply comes from. It’s acting like there is no power supply to the emergency shut down which causes the truck to start for three seconds install like my previous post. it’s a 1995 RD 688S E7 VMAC I motor IMG_0108.heic

This motor does not have independent injection. It has the old style injection pump set up with only the rear connection for the throttle linkage is a wire pedal.. we changed the coolant temperature sensor and we checked for a second all pressure sensor, but it didn’t find one. It does have all pressure but as soon as it builds up all pressure it kills like I mentioned before. Also, the only electrical we have on the injection pump is, the pick up sensor on the side of it and the main harness that plugs into the rear of the injection pump they also is a three-way solenoid plug on front injection pump not sure where that is for. Does anyone know if they should be voltage to the fuel pump if so, what wire diagram will show you that .

I have a 1998 Mac RD with a e-tech e7 electric bosh fuel injection pump 2D596286-5E23-448B-9C29-F7556EA8A0A0.mp4 (only on back half fuel pump). The truck starts runs for two seconds stalls, but starts right back up again no RPM gauge and the emergency shut off light stays lit changed the oil pressure sensor,changed coolant temperature sensor, and rpm sensor on flywheel also checked the wire harness connection on the fuel pump. I also checked all the fuses and relays and are good. we had a extra Bosch, few computer, swapped it out still the same thing, but there is another engine control module that we did not swap. Not sure if that could be the problem. Any help would be appreciative.