Essential Oxygen Sensor Replacement for Subaru

Why This Part is Needed

The oxygen sensor plays a vital role in your vehicle's fuel management system. It measures the oxygen levels in the exhaust gases and sends this data to the engine control unit (ECU). This ensures your car runs efficiently, reduces emissions, and maintains optimal fuel economy.

How It Works

Positioned in the exhaust system, this sensor detects the oxygen content and provides real-time feedback. The ECU uses this information to adjust the air-fuel mixture, keeping combustion balanced. Proper sensor operation means smoother driving, lower pollution, and better engine life.

What Happens If It's Broken

• Increase in fuel consumption
• Engine misfires or rough idling
• Check Engine Light (CEL) appears
• Rise in emissions – can fail inspection
• Possible long-term engine damage

Compatible Car Models

• Impreza
• Xv