IAT is in intake tube; it will have a plug with 2 wires. looks like it plugs right into the intake tube. to remove it, unplug it and pull it out'
a dirty one will look like this:
& Big Ric's image:
clean it w/carb spray
The intake air temperature sensor tells the computer the temperature of the incoming air. Since cold air is denser than warm air, it needs more fuel to achieve the ideal air/fuel ratio. To do this, the computer will open the injectors for a longer period of time.
Codes 112 to 114 will set a IAT sensor code in the EEC, remove and inspect the sensor it could get contaminated by engine oil , K&N oil or dust. Clean the sensor with isopropyl alcohol. If the sensor still fails replace the unit