Air Fuel (A/F) Sensor P0030 | Testing and Replacement

Today we'll be testing and replacing an air fuel sensor. (Upstream sensor 1.) Also known as A/F sensors, these are a bit more sophisticated than oxygen sensors found in older vehicles. Nonetheless, both sensors are able to indicate air fuel ratios. This specific vehicle is a 2010 Subaru Impreza non-turbo.

Common Trouble Codes:
P0030 - Bank 1 Sensor 1, control circuit
P0031 - Bank 1 Sensor 1, circuit low
P0032 - Bank 1 Sensor 1, circuit high
P0131 - Bank 1 Sensor 1, low voltage
P0132 - Bank 1 Sensor 1, high voltage
P0133 - Bank 1 Sensor 1, slow response
P0134 - Bank 1 Sensor 1, no activity detected
P1152 - Bank 1 Sensor 1, circuit range / performance high
P1153 - Bank 1 Sensor 1, circuit range / performance high

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Tools Used:
Safety Glasses - https://amzn.to/2oU2PsK
Flat head screwdriver
PB Blaster
Oxygen Sensor Removal Tool
1/2" Ratchet
Digital Multi-Meter

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.

Publication, reproduction or distribution of this film is strictly prohibited.

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