Will the power be affected if the throttle screw is not tightened?

Yes, not tightening the throttle screw may affect the power of the car. Throttle is the key component to control the intake air volume. If the screw is not tightened or loosened, the throttle may not be opened or closed correctly, thus affecting the intake and combustion process of the engine. This may cause the engine to lose power, accelerate slowly, shake or fail to start. Therefore, if you find that your vehicle has insufficient power or the above situation occurs, it is recommended that you immediately check and tighten the throttle screw correctly, or hand it over to a professional for maintenance.