3.2 conversion wiring question, does the pms wiring harness has a red wire for pressure sendor? Options

[buck toenges]

I am having problems tracing the red wire from the oil pressure sender of a 1988 3.2 engine through my 914 so I can hook up my oil pressure gauge. So far I haven't found the wire through the 914 body harness by using a continuity check. I have a pms wiring conversion harness and by looking at the diagram it looks like the oil pressure wire is a red wire on pin location 4 on the 911 side. Can anybody help me locate the proper wire for the oil pressure gauge? Is it indeed red and does this wire run from the pms harness through to the dme harness and change color?

Thanks,
Buck

[IronHillRestorations]

A '71 does not have wire for oil temp gauge in the chassis harness.

You can "pirate" the heater blower switch wire for whatever you need.

I don't have my wiring diagrams with me, so I don't have the pin ID's.

I don't know if the early 4 cars have the extra solid green wire. It's in the 6 chassis harness that terminates at the 14 pin plug at the engine bay, and goes up to the gauge cluster area, and is not terminated on that end. If they do not, you're going to have to run an extra wire for something.

The sender on the top of the engine is for oil pressure warning light, it's a pressure switch. I call the other two senders (oil press and temp)

You are correct in that the OP warning light wire is green/red, and should be in your chassis harness terminating at the warning light in the gauge cluster.

Do I understand correctly that there's a separate red wire outside of the PMS harness for the OP sender? If so then just run a wire for your OP gauge to that.

The OP sender is typically on the fan end of the engine on the right as you are looking at the fan, connected to the small oil lines.

I've never done a 3.2 engine harness or had one on my bench, and I've never seen the PMS adapter first hand.