MASS AIR FLOW (MAF) SENSOR INSPECTION [MZ-CD 1.4 DI Turbo]

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Caution

•  Water penetrating the connector will cause sensor malfunction. To prevent this, be careful not to damage the wiring harnesses or the waterproof connector so as to cause water penetration.

Visual Inspection

1.  Remove the MAF/IAT sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZ-CD 1.4 DI Turbo].)

2.  Verify that there are no metal shavings on the sensor.

3.  Visually inspect the MAF sensor for the following:

•  Damage

•  Cracks

•  Rusted sensor terminal

•  Bent sensor terminal

―  If there is any malfunction, replace the MAF/IAT sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZ-CD 1.4 DI Turbo].)

4.  Install the MAF sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZ-CD 1.4 DI Turbo].)

Voltage Inspection

1.  Start the engine and warm up the engine completely.

2.  Measure the voltage between MAF/IAT sensor terminal D and body ground.

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•  If not within the specification, replace the MAF sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZ-CD 1.4 DI Turbo].)