- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NPS "DOX-2000" - Not available
SEAT - Leon, Cordoba, Ibiza, Toledo; VW - Golf, New Beetle; AUDI - A3, TT; SKODA - Fabia, Octavia