Manifold Air Flow Sensor (MAFS): Description

The air flow sensor adopts the feature of maintaining a certain temperature of the heater for sensor to make the hot film element detect the air flow and send related signal to the ECM.

The ECM then determines the fuel amount and ignition timing and check the information to apply the fuel and A/C load correction.

Fig 1: Locating MAF Sensor

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Fig 2: Illustrating MAF Sensor Internal Circuit

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Fig 3: MAF Sensor Specifications

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Fig 4: MAF Sensor Voltage Chart

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Fig 5: MAF Sensor Voltage Graph

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