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Airflow Sensor

Airflow sensor is located in airflow meter and measures intake airflow volume. Airflow meter converts intake air readings into a voltage signal by means of a variable resistor (potentiometer). Input signal is sent to Engine Control Module (ECM) for controlling fuel injection system operation and ignition timing (spark advance).

NOTE: Airflow meter may be referred to as Volume Airflow (VAF) meter or Mass Airflow (MAS) meter.
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