What's the reason for the lack of power in FAW JH6 acceleration?

[AmyFitz]

The reasons for the lack of power in FAW JH6 acceleration include carbon deposit issues and fuel system problems. The specific explanations are as follows: Carbon deposit issues: Carbon deposits include cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, and intake carbon deposits. These areas are closely related to the engine's power output. When there is excessive carbon deposit inside the engine, the car's ignition energy decreases, intake efficiency drops, ultimately leading to reduced engine power and symptoms like shaking and weak acceleration. Fuel system problems: Using incompatible fuel grades can cause a decrease in the car's output power and reduced performance. Alternatively, if the fuel tank vent is blocked and cannot supply the required amount of fuel, it may result in a lean air-fuel mixture and weak engine acceleration.