What are the reasons why a car cannot accelerate?

[Jill]

The following are the reasons why a car cannot accelerate: Excessive carbon deposits in the car engine: Excessive carbon deposits in the throttle and engine, damage to the idle position sensor and air flow meter, leading to excessively high temperature in the combustion chamber and disrupting the normal operation of the engine. Blockage in the fuel system causing insufficient fuel supply: First, check whether the fuel filter is blocked, whether the fuel pump pressure is sufficient, and whether the fuel injector is clogged. Air entering the fuel system making the air-fuel mixture too lean: Gasoline vaporization and combustion require a certain temperature to proceed. When the car is cold, the engine runs unevenly, causing the air-fuel mixture to become too lean. Therefore, it is necessary to warm up the car before driving.