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Home >> Subaru >> 2018 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Injection System (STI) >> Rear Oxygen Sensor >> Inspection
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Rear Oxygen Sensor: Inspection

  1. Check that the rear oxygen sensor has no deformation, cracks or other damages.
  2. Measure the resistance between rear oxygen sensor terminals.
    G06344735
    TERMINAL NO. STANDARD
    1 and 2 5.6+0.8-0.6 Ω (when 20°C (68°F))
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