Your concern is valid. A faulty injector can indeed cause a lack of power at high speeds.
Injectors are responsible for delivering the correct amount of fuel to your truck’s engine. If they’re malfunctioning, the fuel supply can be inconsistent, leading to power loss, especially when you need more fuel like during high-speed driving.
However, other issues could also cause this problem, such as a failing fuel pump or problems with airflow. I’d strongly recommend getting your truck inspected by a professional mechanic to confirm the issue and avoid any potential harm.
Drive safely, Joe!