MASS AIR FLOW (MAF) SENSOR INSPECTION [MZR 1.6]

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Visual Inspection

1.  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].)

2.  Disconnect the MAF/IAT sensor connector.

3.  Remove the MAF/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION [MZR 1.6].)

4.  Visually inspect the MAF sensor for the following:

•  Damage, cracks, dirt

•  Rusted sensor terminal

•  Bent sensor terminal

―  If there is any malfunction, repair or replace the MAF/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION [MZR 1.6].)

Voltage Inspection

1.  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].)

2.  Remove the MAF/IAT sensor without disconnecting the connector. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION [MZR 1.6].)

3.  Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].)

4.  Connect the M-MDS to the DLC-2.

5.  Switch the ignition ON (engine off).

6.  As the air gradually approaches the MAF detection part of the MAF/IAT sensor, verify that the MAF sensor output voltage (PID: MAF) varies. (See ON-BOARD DIAGNOSTIC TEST [MZR 1.6].)

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•  If not as specified, replace the MAF/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION [MZR 1.6].)

Specification (Reference)

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