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Home >> Subaru >> 2024 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Injection System >> Rear Oxygen Sensor >> Inspection

Rear Oxygen Sensor: Inspection

  1. Check that the rear oxygen sensor has no deformation, cracks or other damages.
  2. Measure the Ω between rear oxygen sensor terminals.
G11252908Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Standard
1 - 2 5.4 - 6.6 Ω (at 23°C (73°F))
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