- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- VEGAZ "ULS-319" - Not available
AUDI - TT, A8, A4, A6, A3; VW - Passat, Phaeton; BMW - 3, 5; ALFA ROMEO - 156, 166; CITROËN - C5, C4