Precision Exhaust Mixture Sensor for Nissan

This exhaust-mounted mixture sensor is a key feedback part for the engine control unit. It constantly checks how much oxygen is left in the exhaust and helps the ECU fine-tune fuel delivery. The result is smoother running, cleaner emissions, and better fuel economy .

Why This Part Is Needed

Modern Nissan engines rely on accurate mixture readings to keep the air/fuel balance near ideal. When the sensor data is correct, the ECU can adjust injector pulse and protect the catalytic converter from overload.

How It Works

A heated sensing element reads exhaust content in real time and sends a fast voltage/current signal to the ECU. The built-in heater brings the sensor up to temperature quickly, so cold-start fueling and idle control stay stable.

What Happens If It’s Broken

If it fails or becomes slow, the ECU may run rich or lean. Expect a check engine light, rough idle, hesitation, higher fuel use, fuel smell, failed emissions test, and possible catalytic converter damage ⚠️.

✅ Compatibility

• Versa
• Maxima
• Altima
• Sentra
• Altima Coupe
• Cube
• Versa Sedan