- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Elta Automotive "XLS1123" - Not available
ALFA ROMEO - 156, 147, 166, Spider, GTV; FIAT - Stilo, Doblo; LANCIA - Kappa, Lybra