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Mass Air Flow Meter: Inspection: Inspection

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT MASS AIR FLOW METER 
    1. Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter shown in the illustration.
      Fig 1: Inspecting Mass Air Flow Meter
      GTY165818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      No foreign matter is attached.

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

    2. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying Mass Air Flow Meter
      GTY164358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 (THA) - 2 (E2) -20°C (-4°F) 13.6 to 18.4 kΩ
      1 (THA) - 2 (E2) 20°C (68°F) 2.21 to 2.69 kΩ
      1 (THA) - 2 (E2) 60°C (140°F) 0.493 to 0.667 kΩ

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