Mirage L4-1795cc 1.8L SOHC (1994)
Volume Air Flow Sensor: Description and Operation
DESCRIPTION
The volume air flow sensor located in the air cleaner converts the engine intake air volume into a pulse signal of frequency proportional to the air
volume and inputs it to the engine control module, which then computes the fuel injection rate, etc. based on the input signal.
OPERATION
The volume air flow sensor power is supplied from the MFI relay to the volume air flow sensor and is grounded by the engine control module. The
volume air flow sensor generates a pulse signal as it repeatedly connects and disconnects between the 5 Volts supplied from the engine control
module and ground.
