- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- VEGAZ "ULS-422" - Not available
SUBARU - Impreza, Forester, Outback, Legacy; CITROËN - ZX, XM; CHEVROLET - S10, Tahoe; BMW - 7, 5; DAEWOO - Lanos, Matiz