Can't Ford Sharp go faster?

20 15 Ford Sharp 2.7t Premium Edition has been used for10.5 years, and it is 40,000 kilometers. Now it is impossible to speed up refueling, with a speed of only 50 yards per hour and no fault code. The 4s shop couldn't find the cause of the problem, and the manufacturer didn't reply. Do you have a similar car? 20 15 Ford Prix (check the transaction price | vehicle details) 2.7t Zunrui version, used 1 year and a half, 40,000 kilometers, but now the gas can't be accelerated, the speed is only 50 yards per hour, there is no fault code, the 4s shop can't find out the cause of the problem, and the manufacturer has not given a reply. Do you have a similar car? Has the sharp boundary been solved? Generally, it is directly related to the working conditions of the engine ignition system and EFI system. For example, the ignition timing is too early or too late, the spark is too weak, and the mixture is too rich or too thin, which will lead to the phenomenon of engine acceleration weakness. Please focus on the following aspects. First, check whether the ignition system works normally, mainly to see whether the ignition energy is too weak and whether there is intermittent ignition failure, which is directly related to the performance of spark plugs, high-voltage lines and ignition coils, and also check whether the ignition timing is normal, which will lead to poor acceleration too early or too late. Second, check the electronic fuel injection system, check whether the fuel pressure is too low and whether the steam filter is blocked. Check whether the fuel injector is blocked or leaked, resulting in poor fuel injection and poor atomization. Then, check whether the air filter is seriously blocked. If it is blocked, it will lead to too little intake air, which will lead to the phenomenon of too rich mixture. Then if the relevant sensors work abnormally, it will also lead to the above phenomenon, such as throttle position sensor, air flow meter or manifold pressure sensor. Finally, check whether the cylinder pressure is too low and whether the exhaust system is blocked. Can your top speed only reach 50 per hour? Did an operation error turn on the speed limiter of the car? It is suggested to find a repair shop for the master to see. Generally speaking, 4S is not necessarily directly related to the working conditions of the engine ignition system and EFI system. For example, the ignition timing is too early or too late, the spark is too weak, and the mixture is too rich or too thin, which will lead to the phenomenon of engine acceleration weakness. Engine ignition system: The automobile ignition system is an ignition engine. In order to work normally, according to the ignition sequence of each cylinder, high-voltage electricity with high enough energy (about 15000 ~ 30000 V) is regularly supplied to the spark plug, so that the spark plug can generate strong enough sparks to ignite the combustible mixture. When the engine is working normally, only 1~5mJ spark energy is needed because the compressed temperature of the mixture is close to its auto-ignition temperature. However, when the mixture is too rich or too lean, when the engine starts, idles or the throttle valve opens sharply, higher spark energy is needed. This can only be checked in the 4S shop. If there is nothing wrong with the vehicle oil circuit, I suggest you check whether the engine is short of cylinder, whether the gasoline pressure is low, and whether the three-way catalyst is blocked. @20 19