- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Mobiletron "OS-B420P" - Not available
ALFA ROMEO - 156, Spider, 166, GTV, 145; FIAT - Doblo, Punto; AUDI - A4, TT; MERCEDES-BENZ - C-Class, CLK; FORD - Focus, Fiesta