- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- EFI "301321" - Not available
OPEL - Omega A, Frontera A, Rekord E; AUDI - 100, 80; VAUXHALL - Frontera; MERCEDES-BENZ - 190, 124; FIAT - UNO; ...