- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES20491-12B1" - Not available
VAUXHALL - Astra, Corsa, Insignia, Adam, Corsavan; OPEL - Astra J, Corsa; CHEVROLET - Aveo, Cruze; AUDI - A4, A3