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Home >> Subaru >> 2013 >> Outback Premium, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (H4DO) >> 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.
    Fig 1: Measuring Resistance Between Rear Oxygen Sensor Terminals 1 And 2
    G08315454Courtesy of SUBARU OF AMERICA, INC.
    Terminal No. Standard
    1 and 2 Approx. 5.6 Ω (when 20°C (68°F))