- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Mobiletron "OS-B452P" - Not available
ALFA ROMEO - 156, Mito, GTV, 166, 147; FIAT - Grande Punto, Bravo; ABARTH - 500, 595