How to feel a little slow when stepping on the gas pedal?

The car did not respond after stepping on the accelerator, and suddenly accelerated after a few seconds. How did this happen? In fact, this is mostly because the oil and gas gates are blocked by carbon deposits.

If the throttle is blocked, the throttle opening changes little or even remains unchanged when the throttle is stepped on. That is likely to cause engine idling instability or even slow response, which is why some cars suddenly accelerate after a few seconds when they step on the accelerator.

Not only the throttle is blocked, but also the pipes of other parts will be blocked by carbon deposits, and the engine may be slow to respond. Carbon deposition will narrow the intake passage and reduce the intake accordingly. The reduction of air for auxiliary combustion will lead to insufficient fuel combustion, and the power provided for automobiles will naturally decrease. This is also the reason why the car is stuffy, and even causes some damage to the engine.