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Home >> Ford >> 1990 >> Festiva L >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices (Fuel Injection) >> Vane Air Flow Meter (VAF)

Vane Air Flow Meter (VAF)

Vane airflow meter detects intake air quantity and converts measurement to a voltage reading by means of a potentiometer. Reading is sent to ECA which in turn determines injection quantities. Voltage increases as the opening in the measuring plate increase. VAF also incorporates a sensor to detect intake air temperature and a fuel pump switch to control the fuel pump.