On-Vehicle Inspection

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

NOTICE:
* Perform the MAF meter inspection according to the procedure below.
* Only replace the MAF meter when MAF value in the Data List (with the engine stopped) are not within the normal operating range.

1. CHECK MASS AIR FLOW METER

(a) Read the value 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 the engine switch on (IG) (do not run the engine).

(2) Turn the Techstream on.

(3) Enter the following menus: Powertrain / Engine / Data List / MAF.

(4) Wait 30 seconds, and read the values on the Techstream.

Standard condition:

Less than 0.36 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 Inspection.