On-Vehicle Inspection
NOTE:
- Perform the mass air flow meter inspection in accordance with the procedures below.
- Only replace the mass air flow meter when any foreign matter is adhering to the sensor and both MAF values in the Data List (with the engine stopped) are not within the normal operating range.
- INSPECT MASS AIR FLOW METER
- Read the values using the Techstream (MAF).NOTE:
- Perform the inspection with the vehicle indoors and on a level surface.
- Perform the inspection of the mass air flow meter while it is installed into the air cleaner case (installed on the vehicle).
- During the test, do not use the exhaust air duct to perform suction on the exhaust pipe.
- Connect the Techstream to the DLC3.
- Turn the ignition switch ON (do not run the engine).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Data List / MAF.
- Wait 30 seconds, and read the values on the Techstream.
Standard condition
Tester Display Condition Standard Condition MAF - Engine not running
- 30 seconds after ignition switch is turned ON
Less than 0.48 gm/s - If the result is not as specified, replace the mass air flow meter.
- If the result is within the specified range, inspect the mass air flow meter See step 1.
- Read the values using the Techstream (MAF).