Air Flow Meter/Sensor: Testing and Inspection

MASS AIR FLOW (MAF) SENSOR INSPECTION [MZI-3.7]

Visual Inspection

1. Verify the following items of the MAF sensor.

- Dirt, damage, cracks
- Rusted sensor terminal
- Bent sensor terminal

- If there is any malfunction, replace the MAF/IAT sensor. Service and Repair

Sensor Output Value Inspection

1. Remove the MAF/IAT sensor with the connector still connected.

2. Switch the ignition to ON.

3. Inspect the following items using the PID/DATA monitor function. Diagnostic Monitoring Test Results

- Verify that the sensor output value changes when wind is introduced gradually to the sensor part of the MAF sensor.

- MAF
- If it cannot be verified, replace the MAF/IAT sensor. Service and Repair