- 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 "LS140268" - Not available
CITROËN - ZX, Xsara, AX, C5, XM; PEUGEOT - 405, 306; LANCIA - Zeta, Phedra; FIAT - Ulysse, Punto; FORD - Sierra, Escort