Airflow Sensor
This sensor is mounted in air cleaner assembly. See Fig 1 . 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 secondary air management.
On Starion intercooled models, an atmospheric pressure pick-up nipple (leading to atmospheric pressure switching solenoid valve) has been added to air cleaner. Locations of oil separator and breather nipple have been changed.