Air Flow Sensor

This sensor is located in the air stream of the air flow meter, and supplies air volume information to the ECU. The ECU uses this and other information in regulating the fuel injection rate.

The air flow meter incorporates a measuring flap, that opens against pressure of a spiral spring, and is connected to a potentiometer. The potentiometer transmits an electrical signal determined by position of the measuring flap, to inform the ECU of engine load.