Essential Component for Optimal Engine Performance

The **Subaru 22641AA670** is a critical component for ensuring your vehicle operates efficiently. This part plays a pivotal role in managing the fuel-to-air mixture that enters the engine. It's essential for achieving the perfect balance necessary for combustion, optimized fuel consumption, and reduced emissions ?️. Without it, your vehicle might experience increased fuel consumption and emissions, poor performance, and even long-term engine damage.

How It Works

This part functions as an air-fuel ratio sensor, often referred to as a lambda or oxygen sensor. Located in the exhaust system, it continuously monitors the exhaust gasses, sending real-time data to the engine control unit (ECU). The ECU uses this feedback to fine-tune the fuel injection system, ensuring the engine runs smoothly and meets environmental standards ?.

Consequences of a Malfunctioning Sensor

If this component fails, you might notice symptoms such as rough idling, stalling, or a noticeable drop in power. A malfunction can also illuminate the check engine light, alerting you to an issue within the emissions system ⚠️. Ignoring these signs can lead to further complications, such as catalytic converter damage and increased maintenance costs.

Compatible Models

• Impreza
• Xv
• Forester
• Exiga