Airflow Sensor Operation

This sensor is mounted in air cleaner assembly. The sensor measures airflow rate through the air cleaner and sends a proportionate electrical signal to ECU. The ECU uses airflow sensor information for controlling fuel delivery and the secondary air management. On Conquest and Starion intercooled models, an atmospheric pressure pickup nipple (leading to atmospheric pressure switching solenoid valve) has been added to air cleaner and locations of oil separator and breather nipple have been changed.