- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES10399" - Not available
BMW - 3, 5, Z3, 7, X5; AUDI - A6, A4; PORSCHE - 911; SAAB - 9-3; FORD - Escort, Galaxy