- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Elta Automotive "EX0404" - Not available
FORD - Mondeo, Escort, Scorpio, Fiesta, Sierra; AUDI - A6, A4; CITROËN - Berlingo, C3