In today’s modern fuel injected cars, the throttle body is a critical piece of the air intake system that controls the amount of air flowing into the engine. The amount of air allowed in depends on how far the driver presses the accelerator pedal to the floor. As you press down on the pedal, the throttle position sensor receives a signal relative to where your foot is, ranging from all the way up (zero acceleration) to all the way down (full acceleration). This sensor relays the information to the car’s main computer, giving it constant throttle position updates. The computer can then calculate the required air to fuel ratio based on the throttle position. Some important information for selecting the correct throttle body is the type of part needed; electric or conventional, mounting holes, diameter, shape and size and date limitation of the unit. As car manufacturers regularly update certain peripherals and design of their models, some throttle bodies will only be suitable for particular models of certain years.
