RS4 Throttle body

Throttle bodies control the amount of air entering the intake manifold, as well as telling your engine computer where the idle and wide open throttle positions are. The sensors on your throttle body can wear out over time. These sensors control vital engine features through the engine computer. If your vehicle is throwing a check engine light about throttle position, this may be the issue. If your vehicle is not idling properly or you feel the power at wide open throttle is not proper, replace your throttle body. Easily replaced with simple hand tools