22690AA501 Subaru SEN ASSY-OXYGEN, Price: 118.33$, Weight: 0.098kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Subaru |
22690AA501 |
SEN ASSY-OXYGEN |
1 |
0.098 |
2-3 |
118.33$ |
Substitutions
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Subaru |
22690AA500
|
SEN ASSY-OXYGEN
|
0 |
0.103
|
-
|
143.69$
|
Not Available |
Oxygen Sensor for Subaru Engine Management ⚙️
This oxygen sensor is a key exhaust and fuel-control component. It measures the oxygen level in the exhaust gas and sends a signal to the ECU. The engine computer uses this data to adjust the air-fuel mixture, helping the engine run clean, smooth, and efficient.
Why This Part Is Needed ?
A correct oxygen reading is vital for stable fuel consumption, low emissions, and proper catalytic converter operation. When the sensor works well, the ECU can keep combustion close to the ideal ratio, improving throttle response and reducing unnecessary fuel waste.
How It Works ?
The sensor sits in the exhaust stream and reacts to oxygen content after combustion. It creates a changing electrical signal based on exhaust gas condition. The ECU reads this signal many times per second and fine-tunes injector operation for cleaner engine performance.
Signs of a Broken Sensor ⚠️
Common Problems
If the sensor fails, the engine may run too rich or too lean. You may notice higher fuel use, rough idle, weak acceleration, bad exhaust smell, failed emissions test, or a check engine light. Long driving with a faulty sensor can also overload the catalytic converter.
Compatible Models
- Impreza
- Forester