- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES21465-12B1" - Not available
KIA - Ceed, PRO Ceed, RIO, Sportage, Venga; IVECO - Daily, Massif; HYUNDAI - I30, I20; CITROËN - C5, Jumper; AUDI - A4, Q5