I’m sure there are existing posts about this, if so plz direct accordingly.
I have a 98 Dakota with the 5.2 it was running. I have since removed the body in preparation for a body swap with my 49 Coronet. I have the complete harness out of the truck but can’t get it to run. It will catch in the “start” mode of the key, but will stop once in the “run” position. Fuel pump stays energized, If I dribble fuel in it stays running. So I am looking for two things I guess.
a minimum harness diagram that will provide engine/charging operation and what may be causing it to not stay running presently.
I have
thanks in advance.

 

So what I am reading is that the fuel injectors are shutting off when the key is not in the start position, but the fuel pump and ignition coil are staying triggered.

The fuel pump, coil, and injectors are provided power by the Auto-ShutDown (ASD) relay in the Power Distribution Center (PDC). Since 2 of the three are staying on, the engine is either losing cam sync (sensor in the base of the distributor), or the PCM is shutting off the injectors manually. Also possible that the cam sync is more than 10* off. Are you keeping the dakota gauge cluster?

For what you are doing, you really need the OBD2 port intact and to use a DRB3 or a Snap-On Modus tool.

The voltage regulator is inside the PCM as well, it pulses the field wire of the alternator to maintain target voltage, but the battery temperature sensor needs to be present for charging to take place (if sensor is unplugged, it will fault).

 

Magnethead, yes I have the cluster installed,
I do not have the battery temp sensor. That was “lost” in the removal off the cab.

I will provide more info, I don’t have time right now