Why does the car feel heavier and accelerate slower?

[MacPaislee]

When the car feels heavier and accelerates slower, it is likely due to a dirty throttle body that needs cleaning. The throttle body is a controllable valve that regulates the air entering the engine, and there are two types: traditional cable-operated and electronic throttle bodies. After the air enters the intake pipe, it mixes with gasoline to form a combustible mixture for combustion. The throttle body is connected to the air filter at the top and the engine block at the bottom. In traditional engines, the throttle control mechanism operates via a cable or linkage rod, connecting the accelerator pedal on one end and the throttle linkage plate on the other. Electronic throttle bodies primarily use a throttle position sensor to control the throttle opening angle based on the engine's power demand, thereby adjusting the intake air volume.