Failure phenomenon of Volvo engine waste gas valve

The car is difficult to start and can't ignite normally. The wastegate valve is a device related to the engine. When the waste gas valve fails, the engine can't work normally, so when the waste gas valve of Volvo engine fails, the car will be difficult to start and can't ignite normally. The function of waste gas valve is to re-enter the engine cylinder for combustion and fully reduce the temperature in the cylinder.