Just installed an edelbrock supercharger on my 2011 5.0 f-150. I am now getting a p1289 code reading "high input cht sensor" but I can read the cylinder head temp and the coolant temp on my edge CTS just fine so I know I'm not overheating. I can turn the key to the on position without starting the truck and it will pop up in the screen saying "overheat" and the coolant gauge will drop to zero and stay there. The fan runs the whole time the truck is running and the a/c will not blow cold air. I've seen a lot of write ups on this for the 5.4 and 4.6 motors but not the 5.0 so my question is where is this sensor located? Maybe I pinched the harness during the install

 

Looks like the CHT sensor is on the rear of the passengers side head. Pinch a wire or something maybe?

-Steve

 

The only diagram I've found was for a 5.0 mustang and it showed it on the rear passenger side also. Wasn't sure if this one was in the same place because I can't see or feel back there unless I pull the supercharger back off

 

Figured it out. I had pulled the sensor loose. For future reference you can get to this sensor by pulling the passenger side inner fender and getting between the tire and frame to reach up from the bottom/side

 

would really love to see some pics and hear about your supercharger
i have searched everywhere and cant find anyone with the edelbrock one

 

this thread is not the place but would love to get some feedback on it...