There was an abnormal problem when my Chery A3 started. Please help me analyze the reasons!

It may be that if the engine speed is below 2000 for a long time when you are driving, or if you are driving on a crowded road in the city for a long time, the engine is prone to carbon deposition. It's best to go to the 4s shop first to see if the throttle is dirty, and then check whether the spark plug is seriously carbon-deposited. Generally speaking, the car runs1-20 thousand kilometers, so it is best to clean the throttle. Don't drive at high speed and low speed at ordinary times, the engine is easy to accumulate carbon. I suggest you get on the highway once in a while and pull up the speed to clean up the carbon deposit.