Error code 14

Hi all, replaced engine and I got the check engine light on after 5min of operation. Car runs good 'cept for a "hunting" idle after the engine is warmed up. Error code 14 is for the 'Coolant Temperature Sensor circuit. High temperature indicated.'
huh?????
I haven't had the car over heat. in fact the temp gauge always is on the cold side of middle.

Couple of questions. 1 where is the blasted thing? 2 what does it do?

does this affect my hunting idle?
Thanks for the help/insite
Steve

its screwed into the upper side of the throttle body under the air cleaner housing, look for 2 small water hoses that go the the throttle body, sensor is between them. if it goes bad the idle will cycle up and down

How may wires are there?
I have a sensor under ther air cleaner as discribed AND I have a sensor next to a small water line 3/8" od from intake to throttle body.

the sensor in the intake does not have a wire connected and I cannot locate one either.

Could you provide a pic? email to [email protected]
Thanks for the help. I DO appreciate it!
Steve

its in the throttle body assembley, not the intake manifold, has 2 wires going to it. the one that has no wire going to it in side of intake is mostly for automatic cars

Thank you for the clairifacation. I'll go and play with it.
Thanks again
Steve