Haval H6 engine fault light is on, and decoding finds that intake vvt variable valve timing is slow?

1. It is also very important to choose the appropriate quality grade of engine oil for the maintenance of gasoline engines. SD-SF gasoline engine oil should be selected according to the working principle, requirements and use conditions of the intake and exhaust system. For diesel engines, CB-CD diesel engine oil should be selected according to the mechanical load.

2. It is difficult to start the engine cold, mainly because the engine temperature is too low. As long as we keep the engine warm and prevent the biting cold wind from blowing directly into the engine compartment, we can avoid not hitting the car. So when parking in winter, pay attention to the direction of the front of the car. It is best to let the front of the car face the building and use the building to block the wind to prevent the engine from being blown too cold by the cold wind.

3. In addition, clean the fuel in the fuel system regularly. In the process of supplying fuel to the combustion chamber through the oil circuit for combustion, colloid and carbon deposit will inevitably form and deposit in the oil circuit, carburetor, nozzle and combustion chamber, which will interfere with the fuel flow, destroy the normal air-fuel ratio, cause poor fuel atomization, and cause engine jitter, explosion vibration, unstable idle speed and poor acceleration.

4. Using BG208 fuel system powerful and efficient cleaning agent to clean the fuel system and control the generation of carbon deposit can keep the engine in the best condition all the time.