Where is the Buick Excelle evaporative emission solenoid valve?

The Excelle canister solenoid valve is located in the firewall behind the intake branch pipe. The following is the introduction: 1. Function: The function of the fuel evaporation control system is to prevent the evaporated gasoline vapor in the automobile fuel tank from being discharged into the atmosphere. 2. Principle: There is a closed cavity inside the solenoid valve with through holes at different positions. Each hole is connected to a different oil pipe. There are two electromagnets in the middle of the cavity. Which side of the energized electromagnetic coil will attract the valve body to which side. By controlling the movement of the valve body, different oil drain holes will be opened or closed. The hydraulic oil that often enters the oil hole will enter different oil discharge pipes, and then the piston of the oil cylinder will be pushed by the oil pressure, which will drive the piston rod to drive the mechanical device.