22690AA620 Subaru SEN ASSY-OXYGEN, Price: 107.01$, Weight: 0.348kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Subaru |
22690AA620 |
SEN ASSY-OXYGEN |
1 |
0.348 |
2-3 |
107.01$ |
Compatibility
| Body | Made For Region | Engine | Vehicle Grade | Market | Model Year From | Model Year To | Diagram |
|---|---|---|---|---|---|---|---|
| OUTBACK | RHD | 2.5L SOHC NA(252,253) | 25I | Europe/General | 03.2004 | 05.2009 | View |
Oxygen Sensor Assembly for Subaru Exhaust System
This sensor is a key part of the fuel control system. It is needed to help the engine computer keep the air/fuel mix correct for smooth power, low fuel use, and clean emissions. When you replace a tired sensor, you often restore proper throttle response and stop emission-related warning lights ✅.
How it works ⚙️
The unit sits in the exhaust stream and reads oxygen level in the gases. It sends a fast-changing voltage signal to the ECU. The ECU then adjusts injector pulse and fuel trims in real time. In closed-loop driving, this feedback keeps the catalytic converter working at peak efficiency and protects it from overheating.
What happens if it fails
A weak or dead sensor can cause rich or lean running. Common results include higher fuel consumption, rough idle, hesitation, strong fuel smell, failed inspection tests, and a glowing check-engine light. If ignored too long, it may damage the catalytic converter and foul spark plugs, turning a small repair into an expensive one.
Technician notes ️
Always inspect the wiring and connector for heat damage, and avoid contaminating the tip with oil or sealants. Use the correct socket and torque to prevent exhaust leaks.
Compatibility ✅
- Subaru Legacy