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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.
    G12505410Courtesy of SUBARU OF AMERICA, INC.
    Terminal No. Standard
    1 and 2 5.6+1.7-0.6 Ω (when 20°C (68°F))
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