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Home >> Subaru >> 2017 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Service Information) >> Air/fuel ratio sensor (FA20) >> Unit inspection
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Unit inspection

  1. Inspection of air/fuel ratio sensor
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    1 - 2 20°C {68°F} 1.98 to 2.64Ω
    1 - 4 Always 10 k Ωor more
    Fig 1: Identifying Air/Fuel Ratio Sensor Connector Terminals
    G11258419Courtesy of SUBARU OF AMERICA, INC.