- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Mobiletron "OS-B457P" - Not available
ALFA ROMEO - 155, 146, 145, Spider, 156; FIAT - Ducato, Bravo; CITROËN - ZX, Xsara