How the Throttle Body Works:
Airflow Regulation: When the driver presses the accelerator pedal, the throttle plate inside the throttle body opens, allowing more air to flow into the engine. The amount of air is directly proportional to how much the throttle plate opens.

Fuel Injection: The increased air flow signals the ECU to inject more fuel into the combustion chamber, resulting in more power output from the engine.

Idle Control: When the vehicle is idling (the accelerator pedal is not pressed), the throttle plate is nearly closed. In this state, only a small amount of air flows through to keep the engine running. The ECU or IACV adjusts this airflow to maintain a steady idle speed.

Feedback Loop: The TPS provides continuous feedback to the ECU about the throttle plate's position, allowing the ECU to make real-time adjustments to fuel injection and ignition timing, ensuring optimal engine performance and fuel efficiency.