What are the reasons for a car's lack of power and inability to accelerate?

[AnaLynn]

The reasons for a car's lack of power and inability to accelerate may be due to carbon deposits or poor fuel quality. Carbon deposits: There are three reasons for a car's lack of acceleration power. First, carbon deposits may accumulate on the valves, idle speed motor, intake tract, combustion chamber, and spark plugs, causing the car to stall when idling. Poor fuel quality: This can lead to a lack of acceleration power, affecting the gasoline filter and fuel lines, which may result in poor fuel supply and consequently weak acceleration. It can also impact the lifespan of the exhaust system's three-way catalytic converter. If the three-way catalytic converter is clogged, it will directly affect the vehicle's acceleration performance and also lead to increased fuel consumption, resulting in a lack of acceleration power.