What are the reasons for the car's inability to accelerate when stepping on the gas?

[DiValentina]

The reasons for the car's inability to accelerate when stepping on the gas are as follows: Carbon buildup: Carbon deposits on the valves, idle air control valve, intake manifold, combustion chamber, and spark plugs can cause a lack of power when accelerating. Driving in congested areas: Frequent acceleration and deceleration in heavy traffic over a long period can result in sluggish acceleration when driving again. Poor fuel quality: Using low-quality gasoline can affect the fuel filter and fuel lines, leading to insufficient fuel supply and thus poor acceleration. It can also shorten the lifespan of the catalytic converter in the exhaust system. A clogged catalytic converter will directly impact the vehicle's acceleration performance, increase fuel consumption, and cause sluggish acceleration.