Toyota Yaris: Mass Air Flow Meter / Removal

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Mass Air Flow Meter / Removal



The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the mass air flow meter removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replacement Part or Procedure

Necessary Procedure

Effect/Inoperative when not Performed


Replacement of mass air flow meter sub-assembly

Inspection after repair

  • Poor idle, etc.
  • Engine start function, etc.



(a) Disconnect the mass air flow meter connector.

(b) Remove the 2 screws and mass air flow meter from the air cleaner cap sub-assembly.


If the mass air flow meter has been struck or dropped, replace it.

    On-vehicle Inspection

    ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT MASS AIR FLOW METER HINT: Perform "Inspection After Repair" after replacing the mass air flow meter. Click here (a) Read the value of Data List item "Mass Air Flow Sensor" using the GTS...


    INSPECTION PROCEDURE 1. INSPECT MASS AIR FLOW METER (a) Perform a visual check for any foreign matter on the temperature sensor (thermistor) of the mass air flow meter shown in the illustration...

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