- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- MDR "EPS-1997 033" - Not available
VW - Golf, Passat, Vento, Corrado, Polo; SEAT - Ibiza, Cordoba; CITROËN - ZX, XM; SKODA - Felicia, Favorit; BMW - 5, 7