Car Engine Throttle

What is a Throttle?

A throttle is a device that controls the amount of air that flows into an engine. It is typically located in the intake manifold, and it is connected to the accelerator pedal. When the accelerator pedal is pressed, the throttle opens, allowing more air to flow into the engine. This increases the engine’s speed and power.

Types of Throttles

There are two main types of throttles: mechanical and electronic.

Mechanical throttles are connected to the accelerator pedal by a cable. When the accelerator pedal is pressed, the cable pulls on the throttle, opening it.
Electronic throttles are controlled by an electronic control unit (ECU). The ECU receives a signal from the accelerator pedal and opens the throttle accordingly.

How a Throttle Works

When the accelerator pedal is pressed, the throttle opens, allowing more air to flow into the engine. This increases the engine’s speed and power. The throttle is also used to control the engine’s idle speed. When the accelerator pedal is released, the throttle closes, reducing the amount of air that flows into the engine. This slows down the engine and eventually brings it to a stop.

Throttle Position Sensor

The throttle position sensor (TPS) is a sensor that measures the position of the throttle. The TPS sends a signal to the ECU, which uses this information to calculate the engine’s air-fuel ratio. The TPS is a critical component of the engine’s fuel injection system.

Throttle Body

The throttle body is the housing that contains the throttle. The throttle body is located in the intake manifold, and it is connected to the air filter. The throttle body also contains the TPS.

Throttle Control

The throttle is controlled by the accelerator pedal. When the accelerator pedal is pressed, the throttle opens, allowing more air to flow into the engine. This increases the engine’s speed and power. The throttle is also used to control the engine’s idle speed. When the accelerator pedal is released, the throttle closes, reducing the amount of air that flows into the engine. This slows down the engine and eventually brings it to a stop.