CAUTION / NOTICE / HINT
Perform the mass air flow meter inspection according to the procedure below.
Only replace the mass air flow meter when the mass air flow value in the Data List (with the engine stopped) is not within the normal operating range or there is foreign matter on the mass air flow meter platinum hot wire (heater).
INSPECT MASS AIR FLOW METER ASSEMBLY
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 to the air cleaner case (installed to the vehicle).
During the test, do not use an exhaust air duct to perform suction on the exhaust pipe.
Connect the GTS to the DLC3.
Turn the ignition switch to ON (do not run the engine).
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / MAF.Powertrain > Engine and ECT > Data List
Wait 30 seconds, and read the values on the GTS.
If the result is not as specified, replace the mass air flow meter sub-assembly.
If the result is as specified, inspect the mass air flow meter sub-assembly.
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