Oxygen Sensor Assembly for Hyundai/Kia ?
This oxygen sensor is a key part of the engine fuel control system. It is needed to measure how much oxygen is left in the exhaust gas after combustion. With that information, the ECU corrects the air-fuel mix to keep the engine running clean, strong, and fuel-efficient.
How It Works βοΈ
The sensing element heats up quickly and reads exhaust oxygen levels in real time. It sends a voltage signal to the ECU, helping fine-tune injection timing and mixture. This keeps emissions stable and protects the catalytic converter from overheating or contamination.
Symptoms If the Sensor Fails ?
If the sensor becomes slow, contaminated, or open-circuit, the ECU may switch to a safe default map. That usually causes higher fuel use, rough idle, weak acceleration, and increased exhaust smell. Long-term driving with a faulty sensor can damage the catalytic converter and trigger repeated warning lights.
Common Signs
- Check engine light on
- Fuel consumption increases
- Idle hunting or misfire feel
- Failed emission test
Compatibility β