What are the reasons why a vehicle cannot accelerate?

[DiDawson]

The reasons why a vehicle cannot accelerate are: 1. Damaged spark plugs; 2. Poor fuel quality; 3. Unstable oil pressure. Precautions for pressing the accelerator pedal are: 1. Press and release the accelerator pedal gently, ensuring a smooth and gradual movement; 2. Releasing the clutch should be closely coordinated with pressing the accelerator pedal, with swift actions; 3. Choose the appropriate gear to keep the engine running mostly at medium speed and with a larger throttle opening to save fuel; 4. Before driving or turning off the engine, release the accelerator pedal first and avoid revving the engine abruptly. The working principle of the accelerator is: Pressing the accelerator pedal directly controls the throttle valve, increasing its opening, which allows more air to enter the engine. At this point, the ECU commands the fuel injection system to inject more fuel, causing the engine speed to rise and the vehicle to accelerate.