- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- AUDI - 100, 80, A6; FIAT - Tipo, UNO; MERCEDES-BENZ - 124; FORD - Sierra; ALFA ROMEO - 33; LANCIA - Dedra; BMW - 3; ...