Wire connection points

[frailnet]

Hi, I recently replaced both my heads on my 87 2.9 ranger, and I'm still in the process of putting everything back together and I've ran into a problem with what I assume are two sensor wires. The first one is a sold green wire, and the second one is a yellow wire with a red stripe. Hopefully the pictures show enough of where the wires can be found, if not I can post different shots of each. Any help is appreciated, pictures help a lot.
More information on the engine: 4x4, manual trans, no A/C.

 

[RonD]

Single wire would be for SENDERs not sensors, sensors are 2 wire or more, they don't rely on engine grounds.

Oil Pressure sender and Engine temp sender are the only two I can think of, if these wires are grounded the associated gauge should go up.

Starter relay can also have a connector like that, it goes on the smaller "S" post, this wire will have 12volts only when key is turned to START.

 

[frailnet]

Well you were dead right on it being the oil sender, although that still leaves the green wire and I already have the wire plugged in for the water temp sender.

 

[adsm08]

That green one isn't a wire. It's a vacuum line. Goes on the EGR valve.

 

[RonD]

That green one isn't a wire. It's a vacuum line. Goes on the EGR valve.

Jeeze.....good one, even has the red vacuum line in the background, I am getting old