On-Vehicle Inspection
- CHECK MASS AIR FLOW METER NOTE:
- Perform the MAF meter inspection according to the procedures below.
- Only replace the MAF meter when the MAF value in the DATA LIST (with the engine stopped) is not within the normal operating range or there is foreign matter on the MAF meter platinum hot wire (heater).
- Read value using Techstream (MAF).NOTE:
- Perform the inspection with the vehicle indoors and on a level surface.
- Perform the inspection of the MAF meter while it is installed to the air cleaner case (installed to 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 engine switch on (IG) (do not run the engine).
- Turn the Techstream on.
- Select the following menu items: Powertrain / Engine / 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
Below 0.56 g/sec. If the result is not as specified, replace the MAF meter.
If the result is within the specified range, inspect the cause of the extremely rich or lean air fuel ratio.