Econoline E150 1/2 Ton V8-4.6L SOHC VIN W (2001)
Intake Air Temperature Sensor: Description and Operation
INTAKE AIR TEMPERATURE SENSOR
Intake Air Temperature (IAT)
Diagram Of Air Flow Through Throttle Body Contacting MAF Sensor Hot and Cold Wire Terminals
The Intake Air Temperature (IAT) sensors (Figure 34) and integrated Mass Air Flow (MAF) type (Figure 37), are thermistor devices in which
resistance changes with temperature. The electrical resistance of a thermistor decreases as the temperature increases, and increases as the temperature
decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signals to the PCM corresponding to
temperature.