The plot thickens. So my external pump runs via a relay. The earth on the relay is connected to the factory oil pressure switch so the pump will only run where the oil pressure light goes off.
The power wire from the relay to the pump has an inline fuse. Yesterday I went to see if the fuse was ok and it wasn’t. Upon removing the fuse, blade type, the fuse broke off in the holder. No biggie there’s a shop down the road I’ll go get another.
I noticed whiling driving down to the shop the oil pressure light was off. Hmm.
I replace the fuse assembly, start the car and the light is back on, but only dim as it was first doing. Remove the fuse, it’s off. So I’m not even sure now the oil switch is the culprit. Bloody confusing.

CBF’ed anyway looking at it now, the Patrol still runs, I know I have oil pressure, and oil. I’ll worry about it when I get home.


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