How to solve the problem of Buick Angkewei emission system

In several cases, Angkor's exhaust system will fail. 1, the fuel in the engine burns badly, so it is necessary to replace the high-quality fuel and clean the throttle; 2. The quality of gasoline used is not good, so it is necessary to replace the gas station to add fuel; 3. The low carbon at the top of the engine piston is cleaned; 4. The oxygen sensor of the vehicle is out of order and needs to be replaced. The failure of the engine exhaust system indicates that there is something wrong with the engine parts of the vehicle, and the alarm light of the engine lights up to remind the owner that it is necessary to check the engine parts.