Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC) » Engine control system
Mass Air Flow Sensor

The mass air flow sensor (1) is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. The mass air flow sensor controls the temperature of the hot wire to a certain amount. The heat generated by the hot wire is reduced as the intake air flows around it. The more air, the greater the heat loss.

Therefore, the electric current supplied to hot wire is changed to maintain the temperature of the hot wire as air flow increases. The ECM detects the air flow by means of this current change.

Mass Air Flow Sensor

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    Nissan Versa Sedan Service Manual / Engine / Engine control system (EC) / Engine control system / Mass Air Flow Sensor

    Nissan Versa Sedan Service Manual

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