On-Vehicle Inspection

4GR-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 both the Long FT #1 value and MAF value in the Data List (with the engine stopped) are not within the normal operating range.

1. INSPECT MASS AIR FLOW METER

(a) Read the value using 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 and ECT / 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 mass air flow meter.

* If the result is as specified, inspect the mass air flow meter sub-assembly Inspection.