Voltage Regulator problem

Someone may have eliminated the CE37 connector. and with it the VR plug.
View attachment 1715768836

That's OK.
Get a pigtail for the regulator and wire it in.

If you want to test the connections are correct, disconnect the battery and check for continuity in the wires.
It wont show the quality of the connections, but it will show if things are connected correctly.

I went to a local junkyard and scrounged a V/R plug then added the missing green wire from the diagram you provided. Seems to be working as I now have 13.6 volts at idle. Thanks to all who have chipped in.