1. The fault light is on. Oxygen sensor failure will cause the vehicle engine fault light to light up.
2. Lack of power. The signal deviation of the oxygen sensor response is too large, which will cause the engine mixture ratio to be unbalanced and the engine power to be lost.
3. Insufficient acceleration. Oxygen sensor failure will cause insufficient acceleration of the vehicle, and excessive oxygen sensor signal will cause the engine fuel injection to continue to decrease, the idle speed to fluctuate greatly, and the acceleration to be weak.
4. Exhaust gas and black smoke. If the oxygen sensor is damaged and does not work properly, it will cause the air-fuel ratio to be disordered and the engine exhaust to emit black smoke.
5. Engine misfire. If the oxygen sensor is damaged, the engine will have symptoms of misfire, surging and unstable idle speed.
6. Increased fuel consumption and pollution. Damage to the oxygen sensor will cause the computer of the electronic fuel injection system to be unable to obtain information about the oxygen concentration in the exhaust pipe, and unable to feedback to control the air-fuel ratio, resulting in increased engine fuel consumption and exhaust pollution. The oxygen sensor is an important part of the electronic fuel injection system and plays an important role in the normal operation of the engine and the effective control of exhaust emissions. If you find that the oxygen sensor is damaged, go to the 4S shop for inspection and repair in time.