Colt Vista AWD L4-1795cc 1.8L SOHC (1992)
Mass Airflow Sensor: Description and Operation
Air Flow Sensor Circuit
PURPOSE
The Air Flow Sensor (AFS) measures the amount of air entering the intake manifold to provide the ECU with precise intake volume information.
The AFS is a "Karman Vortex" type which measures the intake air volume.
LOCATION
The air flow sensor is attached to the upper air filter housing.
Volume Air Flow Sensor Operation
OPERATION
The air flow sensor operates by means of a vortex generating column and an ultrasonic sound emitter and receiver, located in the air flow chamber.
