- 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 "LS140375" - Not available
MITSUBISHI - Carisma, Sigma, Space Star, 3000 GT, Lancer; AUDI - A4, A5; BMW - 3, 1; ALFA ROMEO - 156, 159