- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- AUDI - 100, 80, A6, Coupe; RENAULT - 19, 21; OPEL - Kadett E; MERCEDES-BENZ - S-Class; NISSAN - Primera; SAAB - 900; ...