Where is the throttle body located?

[StLeilani]

The throttle body is located behind the air filter in the intake system and in front of the intake manifold. The throttle body is the throat of the engine, controlling the amount of air entering the engine. When the driver presses the accelerator pedal, it doesn't directly control fuel injection but rather adjusts the throttle opening. When the throttle opening increases, sensors detect the increased airflow and command the fuel injection system to increase fuel delivery. Modern engines use electronic throttle bodies. The crankcase ventilation tube connects to the throttle body for both environmental reasons and to utilize intake vacuum for drawing gases from the crankcase. When oil vapors reach the intake tract, they cool down, causing oil to condense on intake passages and the throttle body. Carbon deposits carried by these vapors also accumulate in these areas. Since the throttle opening has the highest airflow velocity, smallest space, and lowest gas temperature, this area is most prone to condensation buildup. Therefore, how quickly the throttle body gets dirty depends on multiple factors including air filter quality, engine oil brand/quality, driving conditions, ambient temperature, engine operating temperature, and driving habits.