Air Flow Meter/Sensor: Description and Operation

Volume Air Flow Sensor Operation:

PURPOSE/OPERATION
The volume air-flow sensor is incorporated within the cleaner. It converts the engine air intake volume to a pulse signal and sends this signal to the engine control module. The engine control module then, based upon those signals, calculates the amount of fuel injection.
5 Volt power for the volume air flow sensor is supplied by the multiport fuel injection relay and is grounded through the engine control module. The volume air flow sensor produces it's signal, by intermitting the flow of voltage from the engine control module.