2015 Kia KX3 and Kia Carnival Oxygen Sensor 39210-2E101, plug and play, easy maintenance.

If your 2015 Kia KX3 or Kia KX3 Ceed experiences check engine light, rough idle, noticeably higher fuel consumption, or weak acceleration, this usually indicates a aging or failed oxygen sensor that cannot accurately monitor oxygen content in exhaust. When functioning normally, the sensor feeds real-time air-fuel ratio data to the ECU to help the engine maintain optimal combustion, reducing emissions and improving power response. This sensor with OEM number 39210-2E101 fits 2015 Kia KX3 (1.6L/2.0L) and Ceed (2.0L). During installation, ensure sensor threads are clean, apply a small amount of anti-seize, and avoid over-tightening to prevent damage; operate with the engine cold to avoid burns.