- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES20211-11B1" - Not available
HYUNDAI - Santa FE, Sonata, Trajet, Highway, Santamo; BMW - 3, 5; AUDI - A4, A3; KIA - Joice; ALFA ROMEO - 159, Spider