Subaru Air Fuel Sensor Testing and Replacement P0030 P0031 P0032

How to test and replace an air fuel sensor on a modern Subaru. This was performed on a 2011 Outback with 173k miles. If your Subaru Outback, Impreza, Forester or Legacy has a bad air fuel sensor (with the 2.5L boxer engine) this will help you. Cheers.

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Removal of air fuel sensor: 3:12
Installation: 7:46

Subaru P0030 - HO2S Heater Control Circuit (Bank 1 Sensor 1)
Subaru P0031 - HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
Subaru P0032 - HO2S Heater Control Circuit High (Bank 1 Sensor 1)
Subaru P0131 - O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
Subaru P0132 - O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
Subaru P0133 - O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
Subaru P0134 - O2 Sensor Circuit No Activity (Bank 1 Sensor 1)

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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