- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- RIDEX "3922L0316" - Not available
ALFA ROMEO - 156, 166, Spider, GTV, 147; FIAT - Palio, Siena; LANCIA - Thesis, Kappa; AUDI - A4, A8; CITROËN - Xsara, C5