- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NTK "1612" - Not available
ALFA ROMEO - 156, 166, Spider, 146, 145; FIAT - Doblo, Bravo; CITROËN - Xsara, C5; LANCIA - Kappa; AUDI - A4, A8