- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Topran "722 623" - Not available
PEUGEOT - 206, 307, 406, 306, Partner; CITROËN - Xsara, C5; AUDI - A4, A6; FIAT - Ducato, Doblo; ALFA ROMEO - 156, 166