Welcome to JustAnswer.com! My name is DriveFast71(Ron) and I will do my best to answer all of your questions completely and accurately.
On this vehicle, the IAT sensor is a stand-alone sensor (there is no MAF Sensor on this engine). It's mounted into the front of the intake manifold air box plenum. The wire colors are:
Dark Blue/Light Green = IAT Signal ( + )
Dark Blue/Dark Green = Signal Return ( - )