- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- GAUSS "GO8416" - Not available
VW - GOL, Saveiro, Golf, Polo, Parati; AUDI - A4, A6; ALFA ROMEO - 156, 166; CITROËN - C4, C5