- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES20009-12B1" - Not available
SAAB - 9-3, 9-5, 9-3x; OPEL - Insignia A, Astra J GTC; CHEVROLET - Corvette, Malibu