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Home >> Subaru >> 2018 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Service Information) >> Intake Air Flow Meter S/A (FA20) >> Unit Inspection
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Unit Inspection

G12586405Courtesy of SUBARU OF AMERICA, INC.
  1. Inspection of intake air flow meter SUB-ASSY
    1. Use a working lamp, visually check the platinum filament (heater) portion of the intake air flow meter SUB-ASSY for foreign matter.

      Criteria: No foreign matter 

      NOTE: If there is a foreign matter on the platinum filament (heater), replace the intake air flow meter SUB-ASSY.
      G12586406Courtesy of SUBARU OF AMERICA, INC.
    2. Inspection of intake temperature sensor resistance
      1. Measure the resistance between the terminals.
STANDARD VALUE RESISTANCE SPECIFICATION

Inspection terminals Inspection conditions Standard value
1 - 2 -20°C {-4°F} 13.6 to 18.4k Ω
20°C {68°F} 2.21 to 2.69k Ω
60°C {140°F} 0.49 to 0.67k Ω
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