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Home >> Subaru >> 2019 >> WRX STI Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Fuel Injection System (Except For STI)) >> Rear Oxygen Sensor >> Inspection

Rear Oxygen Sensor: Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Check that the rear oxygen sensor has no deformation, cracks or other damages.
  2. Measure the resistance between rear oxygen sensor terminals.
    G08315454Courtesy of SUBARU OF AMERICA, INC.
    Terminal No. Standard
    1 and 2 13.0+1.5-1.3 Ω (when 20°C (68°F))