- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- AUDI - A3, TT, A4, A5; BMW - 3, 5; FORD - Focus, Mondeo; ALFA ROMEO - 159, Giulietta; HYUNDAI - IX35, I40; FIAT - Doblo; ...