- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- EFI "301587" - Not available
AUDI - A6, A4, S6, A3, A5; FORD - Escort, Mondeo; FIAT - Punto, Panda; CITROËN - Xsara, Berlingo; CHRYSLER - Voyager, Sebring