What are the reasons for engine lack of power?

[JaxsonAnn]

Engine lack of power can be caused by: 1. Fuel supply system failure; 2. Air supply system failure; 3. Exhaust system failure, which mainly refers to poor exhaust flow, usually caused by a broken catalytic converter. If the exhaust pipe is blocked, it will lead to a decrease in engine power; 4. Clutch and transmission failure. For manual transmission vehicles, clutch slippage can result in the engine speed increasing while the vehicle speed does not rise during acceleration. The car engine is the device that provides power to the vehicle, serving as the heart of the car, determining its power, fuel economy, stability, and environmental performance.