Oxygen Sensor for Subaru Impreza Liberty 2.0L Downstream 4-Wire Heated Direct Fit Replacement
Introducing the WEIDA Auto Parts downstream oxygen sensor designed for Subaru Impreza Liberty 2.0L models from 2005–2010. This 4-wire heated sensor is a precise, direct-fit replacement for the original 22690-AA831 O2 sensor, engineered to monitor post-catalytic converter oxygen levels and help your engine manage the air-fuel balance with greater accuracy. The heated element ensures faster warm-up and stable readings in cold starts, contributing to cleaner emissions, steadier idle, and improved fuel efficiency.
Designed to work seamlessly with the 2005–2010 Subaru Impreza Liberty 2.0L, this downstream sensor provides reliable feedback to the engine control unit (ECU) once exhaust gases pass through the catalytic converter. By delivering consistent post-cat oxygen data, it supports optimal engine performance, reduced emissions, and better long-term catalyst health. Built to meet OEM specifications, it’s a dependable choice for maintenance or repair that aims to restore factory-level control.
Benefits & Tips
- Supports precise ECU control by providing accurate post-cat oxygen readings, helping maintain efficient fuel combustion and stable engine performance.
- Heated, 4-wire design enables quicker sensor warm-up, reducing idle roughness and improving cold-start behavior.
- Easy, direct-fit replacement using the original mounting and electrical connections for 2005–2010 Subaru Impreza Liberty 2.0L; verify OEM number 22690-AA831 for a correct match.
Product specifications
- Brand: WEIDA AUTO PARTS
- Application: Subarus 2005–2010 Impreza Liberty 2.0L
- OEM No.: 22690-AA831
- Measuring Range: for 2005-2010 Subaru Impreza Liberty 2.0L
- Sensor Type: Piezoelectric
- Type: Heating (4-wire)
- Linear: 4 wire
- Hysteresis: 22690-AA831
- Repeatability: 22690-AA891
- Origin: Mainland China
- Resolution: Oxygen Sensor
Package includes:
- 1 x Downstream Oxygen Sensor, 4-Wire Heated for 2005–2010 Subaru Impreza Liberty 2.0L (OEM No. 22690-AA831)
Warnings/Reminders
- Ensure correct fitment by confirming the vehicle year, model, and engine size (2005–2010 Subaru Impreza Liberty 2.0L) and OEM number 22690-AA831.
- Professional installation is recommended to ensure proper sensor wiring and sealing.
- Disconnect the vehicle battery and allow the exhaust system to cool before replacement.
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