I read up on the oil pressure switches on Vince Waldons web site, kinda interesting that you really don't need a computer to you that you have a pressure problem. With two led light hooked up in the dash using the oil pressure switches; The low pressure switch should stay turned off when the engine is running and; the high pressure switch should turn on or about to turn on.
I'm able to play with my smoke screw as the pump is pre-modded thanks to the previous owner and I can turn it all the way in if I wanted to (collar is missing).
With the engine off and my volt meter, I tested the low pressure switch and there is a connection to ground. I tested the high side and nothing.
With the engine on, I tested the low pressure switch and nothing. I tested the high pressure switch and there is a connection to ground.
I then turn the smoke screw down below idle point (car violently shaking) and the high pressure switch started fluctuating on, off, on, off, etc. I kept turning the smoke screw down a bit and the pressure switch turned off. Turning the smoke screw back up past the high pressure switch fluctuating point, it switched back on.
This was done after a 10 min hard driving as i'm actually trying break something.