which wire goes to the oil pressure switch?

I know it's a single wire and I see the oil pressure switch... But there are 2 single wires not connected in my engine bay right next to the oil pressure switch...

Just looked at mine, it's yellow with a red stripe. Hope that helps

ok i'll look for it. thanks!

found a single yellow wire with a red switch but it is pluggrd into an egr-looking thing near the carb inlet (took off the carb housing too see it)... is it plugged into the wrong place? perfectly possible; last oener just slapped this thing together,,, thanks!

I'm going to take pics tomorrow, i have the motor taken apart doing the rebuild...

I remember somewhere someone saying the a red wire goes to the egr valve.

to the egr yes.. but if you are looking at the egr from the front of the truck; it's a little towards the firewall but looks like the egr valve... no idea what it is..

The egr valve is on the side of the intake under the carb.

just took some pics have to load them.. so we know what I'm talking about here...

Is it this wire? It's the only loose wire left in the engine bay... It's a little bit thicker of a wire, but is Grey with a Yellow stripe and comes out of the main wire harness right above the oil pressure switch. The wire was cut so ???

That looks to be your 02 sensor wire.