- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Fispa "90210" - Not available
MAZDA - 3 (BK, BL), 2, MX-5 (NC), 5; AUDI - A4, A3; BMW - 3, 1; ALFA ROMEO - 159, 156; BENTLEY - Continental