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[quote=spec_ops57]I've narrowe my IAT sensor down to two plugs, is there a certain voltage that runs through it that I could see by using a fluke meter (multimeter) or is there a ohm rating or anything like that?[/QU

Most sensors will typically have a 5 volt reference voltage, although a sensor with a 12 volt reference voltage is not unheard of, if there is say three wires , one would be the 5 volt reference voltage one would be a ground and one would be a signal wire back to the ecm, if there is a wire with a green tracer stripe on it I would bet that is the signal wire. I wish I could tell you more but I haven't had a Ranger in Over a year so details are not that fresh