- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- StartVOLT "VS-OS 0824" - Not available
KIA - Ceed, Cerato, PRO Ceed, Carens, Picanto; HYUNDAI - I30, Elantra, Accent, I10, I20, IX35, Veloster, I40, IX20