Final answer:
If your accelerator pedal is lying flat on the floor, it suggests a problem with the throttle system in your vehicle.
Step-by-step explanation:
If your accelerator pedal is lying flat on the floor, it indicates a problem with the throttle system in your vehicle. The most likely cause is a broken or disconnected throttle cable, which is responsible for transferring your foot's force on the pedal to open the throttle body. Another possibility is a malfunctioning throttle position sensor, which determines the position of the accelerator pedal. These issues can lead to a loss of power or an inability to accelerate.