- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- VEGAZ "DLS-451" - Not available
AUDI - A3, TT, A4, A6, A5; VW - Bora, Sharan; BMW - 3, 5; SEAT - Alhambra, Toledo; ALFA ROMEO - 156, 159