Where is the engine temperature block temperature sensor (metal, not coolant) located?

Here is the engine coolant sensor which runs the fans as well next to the ignition distributor. Check out the images (below). Please let us know if you need anything else to get the problem fixed.

This car has two temperature sensors and one coolant temperature sensor mounted on top of intake in diagram you sent. There is another one on the side of the block rear of engine. I need a replacement for that one. I believe it is the engine temperature sensor for the temperature warning light on dash. It's two wires like coolant temperature sensor. Need help to find on or something that will work.

Can you see the color of the wires going to the sensor, they only show one coolant sensor for this car. It could be the oil pressure sender? Check the image below.