- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Calorstat by Vernet "LS140663" - Not available
AUDI - A6, A4, S6, A3, A5; FORD - Escort, Fiesta; CITROËN - Berlingo, Xsara