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Home >> Subaru >> 2021 >> Forester Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System >> Rear Oxygen Sensor >> Inspection

Rear Oxygen Sensor: Inspection

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  1. Check that the rear oxygen sensor has no deformation, cracks or other damages.
  2. Measure the resistance between rear oxygen sensor terminals.
G11252908Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Standard
1 and 2 5.6+0.8-0.6 Ω (when 20°C (68°F))
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