- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Fispa "90556" - Not available
VW - Golf, Beetle, Passat, Arteon, Scirocco; AUDI - A3, TT; SKODA - Octavia, Superb; SEAT - Leon, Alhambra