- 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 "LS140722" - Not available
VW - Polo, FOX, Golf, Bora, Lupo; SKODA - Fabia, Octavia; SEAT - Ibiza, Cordoba; AUDI - A3, A4