- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Elta Automotive "EX0403" - Not available
FORD - Escort, Fiesta, Cougar, Mondeo, Sierra; AUDI - A4, A6; CITROËN - C5, Xsara