12 Fang Haowo mixer cannot switch to 2000 display when refueling.

1, carbon deposition problem. Include cylinder carbon deposit, throttle carbon deposit, spark plug carbon deposit, intake carbon deposit, etc. When there is too much carbon in the engine, it will reduce the ignition energy of the car and the intake efficiency, which will eventually lead to the reduction of engine power and insufficient idle speed. It is recommended to clean up in time.

2. Fuel system. Adding inappropriate fuel label leads to the decline of automobile output power and power; Or because the vent hole of the fuel tank cover is blocked, the fuel tank switch, fuel filter and the oil pipe between the fuel tank and carburetor are partially blocked, which can not meet the required oil supply, resulting in too thin mixture and weak engine acceleration, so maintenance is recommended;

3. Air intake system. If it is not cleaned in time after long-term use, the air filter will be blocked and the air volume will be insufficient, which will cause the combustible mixture to be too rich and reduce the engine power; If it is a vehicle with a turbocharger, once the turbocharger fails, it will also lead to the reduction or weakening of engine power. It is recommended to go to 4s shop for maintenance.

4. The engine is overheated. Insufficient engine oil, engine coolant, engine radiator failure, etc. Will increase the load of the engine, resulting in poor heat dissipation of the engine. Overheating of engine will cause poor lubrication effect, increase mechanical wear, reduce engine power and increase fuel consumption. It is recommended to add coolant or carry out maintenance.