MASS AIR FLOW METER INSPECTION

PROCEDURE


  1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY


    1. B004KVMC20
      *a Platinum Hot Wire (Heater)
      *b Temperature Sensing Element

      Perform a visual check for any foreign matter on the platinum hot wire (heater) and temperature sensing element of the mass air flow meter sub-assembly shown in the illustration.

      OK
      There is no foreign matter.

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

    2. B004ME4C02
      *a

      Component without harness connected

      (Mass Air Flow Meter Sub-assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (THA) - 2 (E2) -20°C (-4°F) 13.6 to 18.4 kΩ
      20°C (68°F) 2.21 to 2.69 kΩ
      60°C (140°F) 0.49 to 0.67 kΩ

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