- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES20235-17B1" - Not available
ROVER - 200, 400, 800, Mini, 100; LAND ROVER - Freelander, Discovery; ALFA ROMEO - 155, 145