2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 207
NO - GO TO 2.
2.CHECK FOR THE CAUSE OF UNEVEN AIR FLOW THROUGH MAF SENSOR
1. Turn ignition switch OFF.
2. Check for the cause of uneven air flow through MAF sensor. Refer to the following.
- Crushed air ducts
- Malfunctioning seal of air cleaner element
- Uneven dirt of air cleaner element
- Improper specification of intake air system parts
Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 3.
3.CHECK MAF SENSOR-II
With CONSULT-III
1. Repair or replace malfunctioning part.
2. Start engine and warm it up to normal operating temperature.
3. Connect CONSULT-III and select "DATA MONITOR" mode.
4. Select "MAS A/F SE-B1" and "MAS A/F SE-B2", and check the indication.
Without CONSULT-III
1. Repair or replace malfunctioning part.
2. Start engine and warm it up to normal operating temperature.
3. Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES - INSPECTION END
NO - GO TO 4.
4.CHECK MAF SENSOR-III
With CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect MAF sensor harness connector and reconnect it again.
3. Start engine and warm it up to normal operating temperature.
