Ok so In the pic below there is two circles one red around a two plug sensor of sorts and the other is a green circle around the Speedo cable drive gear.

So basically what is the sensor in the red circle, cause I know the Green one is for my speedo (cable drive).

The Car it is in/from is my 85 Z28 LG4 T5 NONCCC car.

I have so few wires but im not sure what this one is or for.

Any help is greatly appreciated.

 

I may be wrong here, but I believe the one circled in red is for your back-up (reverse) lights.

 

red back-up light switch

 

Ok cool, new it was something easy, thx