- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FAE "77319" - Not available
BMW - 3, 5, 6, 1, 4; AUDI - A4, A3; MAZDA - 6; ALFA ROMEO - 159, Spider; BENTLEY - Continental