Mass Airflow Sensor (Aerio, Esteem 1.8L, Grand Vitara, Vitara & XL-7)

NOTE: Esteem 1.6L uses a Manifold Absolute Pressure (MAP) sensor in place of a MAF sensor.

Mass Airflow (MAF) sensor is located between air cleaner and throttle body. MAF sensor consists of a thermal resistor, metering duct and control circuit. Sensor uses thermal resistor to detect amount of air drawn into engine and sends information to ECM as a current signal. ECM uses this signal to control fuel injectors.