Okay. That is good. When you say you put a module in it, I assume that was the TFI module as that is on the side of the distributor (I think)? Or was it the ECA module which is under the blower motor.
Basically the ECA sends a signal to the TFI module on the SPOUT circuit to adjust the timing and uses the PIP as well for proper ignition and fuel timing.
If you are unplugging the SPOUT and the engine runs, that forces the TFI module to use a preprogrammed timing set up. So I suspect the ECA is sending an incorrect signal to the TFI module which is causing it to stall.
If it were me, based on this info, I would put an ECA in it. Take a look at the info below and let me know if you agree.
Images (Click to enlarge)
Saturday, August 7th, 2021 AT 5:56 PM