- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Hart "529 445" - Not available
OPEL - Agila, Meriva, Combo, Astra, Corsa, Tigra Twintop, Insignia A, Adam, Antara; CHEVROLET - Captiva