Air Flow Meter/Sensor: Testing and Inspection

2GR-FE ENGINE CONTROL SYSTEM: MASS AIR FLOW METER: ON-VEHICLE INSPECTION

ON-VEHICLE INSPECTION

1. INSPECT MASS AIR FLOW METER
(a) Read the values using the Techstream (MAF).
NOTICE:
- Turn off the engine.
- 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.
(1) Turn off the engine (do not run the engine).
(2) Turn the ignition switch to ON.
(3) Turn the Techstream on.
(4) Enter the following menus: Powertrain / Engine and ECT / Data List / MAF.
(5) Wait 30 seconds, and read the values on the Techstream.
Standard condition:
Less than 0.50 g/s

- 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.