How does the throttle body influence engine performance?

The throttle body plays a crucial role in engine performance by managing air intake. It is responsible for controlling the amount of air that enters the engine, which in turn affects the combustion process. When the throttle opens, it allows more air to flow into the engine's intake manifold. This increase in air flow is essential for optimizing the fuel-to-air ratio, leading to more efficient combustion.

A well-functioning throttle body ensures that the engine receives the appropriate amount of air based on the driver's input via the accelerator pedal. By adjusting the throttle position, the engine can respond dynamically to different driving conditions, enhancing performance, acceleration, and overall efficiency. This regulation of air flow helps the engine to perform optimally at various RPMs and loads, contributing to both power output and fuel economy.