LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Subaru
>>
2018
>>
WRX Base
>>
Repair and Diagnosis
>>
Engine Performance
>>
Fuel Delivery
>>
Fuel Injection System (Except For STI)
>>
Rear Oxygen Sensor
>>
Inspection
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Rear Oxygen Sensor: Inspection
Check that the rear oxygen sensor has no deformation, cracks or other damages.
Measure the resistance between rear oxygen sensor terminals.
TERMINAL NO.
STANDARD
1 and 2
13.0
+1.5
-1.3
Ω (when 20°C (68°F))