3 L4-2.5L (2010)
Air Flow Meter/Sensor: Testing and Inspection
MASS AIR FLOW (MAF) SENSOR INSPECTION [LF, L5]
Visual Inspection
1. Remove the battery cover. See: Starting and Charging/Battery/Service and Repair/Removal and Replacement
2. Disconnect the negative battery cable.
3. Disconnect the MAF/IAT sensor connector.
4. Remove the MAF/IAT sensor. See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Service and Repair
5. Visually inspect the MAF/IAT sensor for the following:
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Damage, cracks, soiling
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Rusted sensor terminal
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Bent sensor terminal
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If there is any malfunction, repair or replace the MAF/IAT sensor.
See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Service and Repair
Voltage Inspection
1. Remove the MAF/IAT sensor without disconnect the MAF/IAT sensor connector.
2. Connect the M-MDS to the DLC-2.
3. Switch the ignition to ON.
4. As the air gradually approaches the MAF detection part of the MAF/IAT sensor, verify that the voltage (M-MDS PID: MAF) varies.
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If not as verified, replace the MAF/IAT sensor.
See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Service and Repair
