what is this plug for

i am having brain fart and cant remember where this plug goes. it is located next to the plugs for the throttle position sensor and the iac, is there another plug on the throttle body i am missing? any help would be great

There is a MAP sensor up there too. Not sure what the plug looks like.

Intake Air Temperature, usually goes in the elbow on stock intakes.

i have the map sensor already hooked up. joel and jay {pm} i think have it with the air intake temp sensor. it is not mounted yet so that is probly it. it has been awhile since i took it apart. thanks everyone for your help