hi 3100,
not sure what colors the wires were but there was only one sensor where you're describing other than the cam shaft higher up and towards waterpump.
pulled plug and replaced f/p relay, and when i put key into run position. oil pressure gauge went all the way to the top and car would not start.
pulled f/p relay and jumpered and car still not start.
replaced plug and oil gauge went back to normal.
but now when i turn car off the volt meter goes down as far as it can. with key in run position the volt meter goes to zero. all gauges are workin when car running.
car stalled a few times on me today after i performed this test, but started right back up.