Today we'll be showing how to test and replace a rear oxygen sensor. Typical symptoms of a bad oxygen sensor include hesitation, increased fuel consumption, stalling and rough idling. This specific vehicle is a 2010 Subaru Impreza with 120k miles.
Common Trouble Codes:
P0037 - Bank 1, Sensor 2 - circuit low
P0038 - Bank 1, Sensor 2 - circuit high
P0137 - Bank 1, Sensor 2 - low voltage
P0138 - Bank 1, Sensor 2 - high voltage
P0139 - Bank 1, Sensor 2 - slow response
P0140 - Bank 1, Sensor 2 - no activity detected
Plastic Under Tab Removal (at the 3 minute mark):
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Note:
Any attempt to repair automotive parts and/or systems carries risk of personal injury. Always adhere and follow safe practices when working on vehicles. Such as, safety glasses, jack stands, no loose clothing, etc. No guarantee or warranty is implied. Use the information in this video at your own risk. Carsntoys is a member of the Amazon Influencer Program.
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