That's not a sensor- - - -it's a block heater in a freeze plug hole. Either replace it with a new one, or move a few hundred miles south where you don't spend six months a year with the weather below freezing. If you don't think the engine needs it, just replace it with a regular steel cup plug.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!