Air Flow Meter/Sensor: Testing and Inspection

MASS AIR FLOW (MAF) SENSOR INSPECTION [MZR 2.5]

NOTE:
- The MAF sensor and IAT sensor cannot be removed as a single unit. When replacing the MAF sensor or IAT sensor, replace it together with the MAF/IAT sensor as a single unit.

Visual Inspection

1. Disconnect the negative battery cable. Removal and Replacement

2. Disconnect the MAF/IAT sensor connector.

3. Remove the MAF/IAT sensor. Service and Repair

4. Visually inspect the MAF/IAT sensor for the following:

- Damage, cracks, soiling
- Rusted sensor terminal
- Bent sensor terminal

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

Voltage Inspection

1. Disconnect the negative battery cable. Removal and Replacement

2. Remove the MAF/IAT sensor without disconnect the MAF/IAT sensor connector. Service and Repair

3. Reconnect the negative battery cable. Removal and Replacement

4. Connect the M-MDS to the DLC-2.






5. Switch the ignition to ON.

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. On-Board Diagnostic Test

- If not as verified, replace the MAF/IAT sensor. Service and Repair