Airflow Sensor
This sensor is located in the air stream of the airflow meter, and supplies air volume information to the CU. The CU uses this and other information in regulating the fuel injection rate.
The airflow meter incorporates an airflow measuring plate. The airflow plate opens when the engine draws in air. The plate is connected to a potentiometer. The potentiometer transmits an electrical signal determined by position of the measuring flap, to inform the CU of engine load.
The potentiometer within the airflow meter prevents loss of engine power during sudden acceleration/deceleration by signaling the CU of necessary fuel enrichment requirements.