- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Fenox "OS82002" - Not available
VW - Polo, Passat, Santana, Phaeton, Scirocco; SKODA - Fabia, Rapid; SEAT - Ibiza, Toledo