- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Buchli "DOX-2001" - Not available
PEUGEOT - 306, 307, 406, 206, 807; CITROËN - Xsara, Berlingo; LANCIA - Phedra, Zeta; FIAT - Ulysse