- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- ACI-AVESA "SLS-13331" - Not available
VW - Transporter, Golf, Passat, Polo, Vento; SEAT - Cordoba, Alhambra; PEUGEOT - 306, 405; CITROËN - ZX, XM