The throttle body that operates by linkage connected to the accelerator pedal is which type?

The throttle body that operates by linkage connected to the accelerator pedal is which type?

• A. Mechanically driven
• B. Electronically driven
• C. Stock
• D. Aftermarket

Answer: (A)

The main concept is how the throttle is actuated: whether the throttle plate is opened by a physical connection or by electronic control. When the accelerator pedal is connected directly to the throttle body by a linkage, pressing the pedal mechanically moves the throttle plate open via a cable or rod. This is a direct, mechanical control with no electronic signal altering the position. That’s why this is described as mechanically driven. In contrast, electronically driven throttle systems use sensors to read pedal position and an electric motor to open the throttle, all controlled by the engine computer. The terms stock or aftermarket don’t specify the actuation method—they refer to origin or branding and could be either mechanical or electronic, so they don’t identify the control method.

The main concept is how the throttle is actuated: whether the throttle plate is opened by a physical connection or by electronic control. When the accelerator pedal is connected directly to the throttle body by a linkage, pressing the pedal mechanically moves the throttle plate open via a cable or rod. This is a direct, mechanical control with no electronic signal altering the position. That’s why this is described as mechanically driven.

In contrast, electronically driven throttle systems use sensors to read pedal position and an electric motor to open the throttle, all controlled by the engine computer. The terms stock or aftermarket don’t specify the actuation method—they refer to origin or branding and could be either mechanical or electronic, so they don’t identify the control method.