

What is this connector?
Found it unplugged under the intake manifold, been having issues with the truck idling kind of high and will stall when put in gear, was looking around and cant find a place where this plugs in. Truck hasn't been driven regularly for about 12 or 15 years but im trying to get it to be a daily. Appreciate any insight. Truck is a 91 f150 4.9 with e4od and 2wd, single cab.