- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- RECOFICIAL "CSL2356" - Not available
SUBARU - Impreza, Legacy, Forester, Outback, BRZ; AUDI - A4, A3; BMW - 3, 1; ALFA ROMEO - 159, 156