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MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-D 1.8]

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Visual Inspection

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

2. Remove the MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

3. Visually inspect the MAF sensor for the following malfunction:

• Damage, cracks, dirt

• Rusted sensor terminal

• Bent sensor terminal

― If there is any malfunction, repair or replace the MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

Voltage Inspection

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

2. Remove the MAF sensor/IAT sensor No.1 without disconnect the connector. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

3. Reconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

4. Switch the ignition ON (engine off).

5. As the air gradually approaches the MAF detection part of the MAF sensor/IAT sensor No.1, measure the voltage at the MAF sensor/IAT sensor No.1 terminal C.

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• If the voltage does not increase, replace the MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

Specification (Reference)

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