- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- StartVOLT "VS-OS 2122" - Not available
OPEL - Insignia A, Astra J GTC; HUMMER - Hummer H3, Hummer H3t; CHEVROLET - Malibu, Colorado; SAAB - 9-5