Intake Air Temperature (IAT) Sensor
IAT sensor is part of volume airflow sensor (mass airflow sensor on ES300). ECM applies a reference voltage to IAT sensor, which is a variable resistor. ECM uses voltage signal to control fuel injection duration.
IAT sensor is part of volume airflow sensor (mass airflow sensor on ES300). ECM applies a reference voltage to IAT sensor, which is a variable resistor. ECM uses voltage signal to control fuel injection duration.