The car shakes even after changing the oil. It may be that there is too much carbon in the fuel system, or the new oil has changed its mark or brand. 1、 There is a lot of carbon deposit in the fuel system: the fuel system is a relatively fine part of the car parts. When cleaning the carbon deposit, it is recommended to go to the 4S store to deal with it. The carbon deposits in this part are mostly concentrated in fuel injection nozzle, combustion chamber, three-way catalyst, throttle valve, intake pipe, combustion chamber and other places. It is necessary to deal with the carbon deposit in the fuel system. It can not only eliminate the jitter fault, but also avoid
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