The car will shake when it slams on the accelerator, and the speed will not go up.

Hello: Regarding the situation that you said that the acceleration is weak, because you haven't seen the current car yet, the analysis may also be caused by carbon deposition on the accelerator or idle motor; In addition, if the oil quality is poor, it will also affect the service life of the three-way catalyst in the exhaust system. If the three-way catalyst is blocked, it will directly affect vehicle acceleration and increase fuel consumption. It may be caused by sensor failure again. Because the engine is controlled by ecu, when shifting gears, refueling and receiving oil, the computer will continuously collect signals from various sensors to control the fuel injection quantity of the engine. Once there is a problem, the computer program will be disordered, resulting in the phenomenon of weak acceleration. According to the above analysis, I suggest you go to a 4s shop or a regular repair shop for a comprehensive inspection.