I was looking at the outdoor temp and it was about 20 degrees off. Does that mean I need to replace the sensor or is there something I am missing. I am not sure if I kept it off my parts care if that is what it is.

 

http://www.jagrepair.com/images/Trai...des/703_SG.pdf

 

Nah, it means that the plug under left wheel arch liner at the front is corroded. Remove the liner around the bumper and you'll see a large plug/socket. Clean each pin hole with a 1mm drill and the pings with some contact cleaner and it will show correct temp again.

 

That was it. All working