What Causes Poor Acceleration in Small Cars?

[OSamuel]

Poor acceleration in small cars may be due to the throttle body. What is a throttle body: The throttle body is a controllable valve that regulates air intake into the engine. After entering the intake manifold, the air mixes with fuel to form a combustible mixture, which then ignites to generate power. Connected to the air filter on one end and the engine block on the other, it is often referred to as the "throat" of a car engine. Why regular cleaning is necessary: After passing through the air filter, air may leave impurities in the throttle body. Over time, these deposits accumulate and form grime, increasing resistance in the throttle valve's operation and causing issues like unstable engine idling. Therefore, periodic throttle body cleaning is essential.