94 grand cherokee elusive misfire

[mcgrnr0013]

i got A 94 grand Cherokee with the 5.2 v8 it all started with the engine just quitting while going down the road. then after changing the fuel pump, fuel regulator and filter we got it to running but roughly then we changed the dis. cap, rotor button, plugs and one injector that wasnt functioning properly it is running a little smoother but it is showing codes saying to check the injector control circuit, does anyone know how to check that circuit and see where the issue is??

 

[SteelHeadz]

The PCM sends a signal to the individual injectors to pulse the injector open and close. If one of the circuits has a problem, the PCM will send out the dtc. Check the wirings from the injectors to the PCM with a multimeter. Check it for continuity, and resistance. The color codes of the wirings are the key to finding the wiring on both end of the connectors without having a service manual or a schematic diagram.