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Guys, Could you please help me identify these two sensors on my 1989. They are on the metal pipe the comes out of the radiator on the passenger side. In the picture below, the right most sensor has a green wire and a black wire coming out of it, while the left most sensor has a yellow wire and black wire coming out of it.
I am trying to determine why my aux fan in front of my front most radiator (condenser) is not running when I turn on the air conditioner. I am wondering if one of these sensors controls that and has gone bad.
The fan does work because when I take off the wire cap from the sensor on the block between cylinders 1 and 3 and connect the center and outer metal with a paper clip, the aux fan runs. It seems the relay does not know the A/C is on.
Need Help with Sensor Identification
