I noticed our oil pressure sending unit wire has come apart.
I have gone through all the wiring schematics and can't find the diagram for the oil sending unit.
Now the 2 wires on the plug side were twisted together and spliced into the one wire going into the harness, to me this doesn't seem right.
I need to reattach these but which ones?

Thanks

Sending unit plug


Wires on plug side


And the wire it was spliced into


The wire that goes into the harness


.