MASS AIR FLOW METER ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

    Tech Tips

    Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.



    1. Read the value using the GTS (MAF).

      Note

      Perform the inspection of the mass air flow meter sub-assembly while it is installed to the air cleaner cap sub-assembly (installed to the vehicle).


      1. Connect the GTS to the DLC3.

      2. Start the engine.

      3. Turn the GTS on.

      4. Enter the following menus: Powertrain / Engine / Data List / MAF.


        Powertrain > Engine > Data List
        Tester Display
        MAF

      5. Wait for 30 seconds, and read the value on the GTS.

        Standard Condition
        Tester Display Condition Specified Condition
        MAF Idling 4.0 to 7.0 gm/sec
        2000 rpm 12.0 to 16.0 gm/sec
        3000 rpm 17.0 to 23.0 gm/sec

        If the result is not as specified, replace the mass air flow meter sub-assembly.

        If the result is within the specified range, inspect the mass air flow meter sub-assembly.

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  2. PERFORM INITIALIZATION


    1. Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.