What are the reasons for a sudden inability to accelerate while driving on the highway?

[VioletAnn]

The reasons for a sudden inability to accelerate while driving on the highway include blockage in the fuel system, ignition system failure, and a dirty throttle position sensor. Solutions for blockage in the fuel system: 1. Directly add a fuel system cleaner to the fuel tank. This is the simplest method, but the effect is not long-lasting, and the cleaning is not thorough. It is suitable for vehicles with low mileage. 2. Use a "drip cleaning" method. This can clean both the fuel system and the carbon deposits on the valves, and it is the method generally recommended by auto repair shops. 3. Use a no-disassembly cleaning machine. By connecting the engine's fuel inlet and return pipes to the cleaning machine's corresponding pipes with special adapters, a closed loop is formed. This method is convenient and quick, but it only cleans the fuel injectors and not the carbon deposits on the valves. However, for cleaning the fuel system alone, it is very effective and a good method. The fuel filter should be replaced every two maintenance cycles. Solutions for ignition system failure: Connect an ignition tester and adjust the ignition timing to the specified value.