Wuling Glory Truck 1.2 has a high belt speed, so what is the reason why the belt speed will come down when the exhaust pipe is blocked?

Wuling Glory's idle speed is too high, and the idle speed will drop after stepping on the accelerator. The related reasons are as follows: First, the throttle of the vehicle is too dirty, so it is recommended to clean the throttle of the vehicle engine and then re-match the throttle. Secondly, there is air leakage in the air intake system of the vehicle, which is caused by this fault. This is mainly to check the related vacuum pipeline and carbon canister solenoid valve. Third, this phenomenon is caused by too much carbon deposition in the engine. This is the need to clean the carbon deposit on the intake valve seat and the three-way catalyst. Fourth, the exhaust system of the vehicle engine is faulty. The key point is to check the exhaust valve. If the exhaust valve is damaged, it needs to be replaced in time. Fifth, the engine of the vehicle has cylinder failure, which shows this point. Check ignition coil and spark plug. If there is any problem, it needs to be replaced in time!