What operates throttle actuator on 1995 Chevy truck 454 engine?

On a 1995 Chevy truck with a 454 engine, the throttle actuator is typically operated by the electronic throttle control system, which uses a throttle position sensor (TPS) to monitor the position of the throttle plate. The engine control module (ECM) processes this information and sends signals to the throttle actuator to adjust the throttle opening accordingly. This system helps optimize engine performance and fuel efficiency by precisely controlling air intake based on driver input and engine conditions.