Throttle Body and Air Intake Cleaner, No. 05078, from CRC Industries cleans and removes power-robbing gums from air intake components on fuel-injected vehicles. The product allows for easier starting and smoother, more efficient engine performance. The throttle body in the air intake system controls the air that flows into the engine. Eventually, dirt, carbon and other debris buildup inside the throttle body on the throttle plate and butterfly valve, reducing airflow and causing parts to stick. When this happens, it can cause noise at higher engine speeds, fluctuating idle or stalling, rough or slow acceleration and higher emissions.