- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Calorstat by Vernet "LS140434" - Not available
BMW - 3 (E30, EC), 5, 7, 8, 6; CITROËN - XM, ZX; FIAT - Punto, Panda; FORD - Sierra, Escort; ALFA ROMEO - 155, 164