On-Vehicle Inspection
NOTE:
- Perform the mass air flow meter inspection in accordance with the following procedure.
- Only replace the mass air flow meter when there is foreign matter on the MAF meter platinum hot wire, or the MAF value in the Data List (with the engine stopped) is 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, make sure that an exhaust air duct is not drawing air from the exhaust pipe.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to 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 CHARTTester Display Condition Standard Condition MAF - Engine is not running
- 30 seconds after ignition switch is turned to ON
Less than 0.26 g/sec HINT:
- 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 INSPECTION ).