- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FAE "77773" - Not available
CHEVROLET - Malibu, Caprice, Impala, Monte Carlo; CADILLAC - Seville; DAEWOO - Nubira; PONTIAC - Catalina; BUICK - Century; ...