- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- LRT "L0004H400" - Not available
OPEL - Astra, Adam, Cascada, Corsa, Insignia A; VAUXHALL - Astra, Corsa; CHEVROLET - Cruze, Trax