- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Japko "3K13" - Not available
KIA - Sephia, Carnival, Shuma; MAZDA - 323, MX-5, Xedos 9, Demio, MPV II, MX-3, Festiva, II