PROCEDURE
CHECK MASS AIR FLOW METER SUB-ASSEMBLY
Check the mass air flow value.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF.
Blow air into the mass air flow meter sub-assembly and check that the mass air flow meter value fluctuates.
If the result is not as specified, check the mass air flow meter sub-assembly or wiring and ECM Click here.