- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- EFI "301441" - Not available
CITROËN - Xsara, C4, Evasion, Xantia, C5; PEUGEOT - 406, 307; FIAT - Ulysse, Ducato; LANCIA - Zeta, Phedra; AUDI - A4, A3