Cylinder head temperature sensor?

On 3.5L Ecoboost, it is on the passenger side above the flywheel housing. You can get to it from the top of the engine. I had to lay on the engine and reach back there to get to it.
Or you can remove the wheel well liner to get behind the engine. I did it both ways it was easier to screw it back in, from the wheel well.

Where is the cylinder head sensor located?

How do you get to it? Do you need to remove the passenger fender well?

Yes, I tried to get to it. Can get my hand on it but having trouble disconnecting the plug. Know I will have trouble getting socket in it.

Decided to change it because cooling fans would not kick on. After checking fuses, relays and making sure fans worked I found the weep hole on the water pump had antifreeze leaning out of it. Yesterday I Changed the water pump and replaced a 185 degree thermostat (changed one month ago due to overheating) with a 165 degree thermostat, the fans now come on. No overheating and noticed gas mileage improved. Old pump impeller good shape and did not slide on shaft but pump bearings had slack. What fixed the overheating issue?

I have error codes P1289 and P1290; high input and low input. And is it fairly easy to replace?Thank you for your time, chuck

Thank you.

Thank you for the rapid response. I will have to check the location and feasibility of my replacing it tomorrow. Again, thank you for your efforts.