Automobile fuel steam system leakage point detection device and method

The invention provides an automobile fuel steam system leakage point detection device and method.The detection device comprises a choke valve assembly, a pressure pump device and a pressure display device, and the choke valve assembly comprises a first choke valve and a second choke valve; a first connector of an automobile carbon tank is connected with a first pipeline leading to a carbon tank electromagnetic valve through a first choke valve, a second connector of the carbon tank is connected with a second pipeline leading to a fuel tank through a second choke valve, a third connector of the carbon tank is connected with a pressure pump through a third pipeline, and a pressure display device is arranged on the third pipeline. The detection device is simple in structure, electronic circuit control is adopted, and the electronic digital pressure gauge is combined, so that detection is more convenient and accurate. 本发明提供一种汽车燃油蒸汽系统泄漏点检测装置及方法，所述检测装置包括阻气阀组件、压力泵装置和压力显示装置，所述阻气阀组件包括第一阻气阀和第二阻气阀，汽车碳罐的第一接口处通过第一阻气阀连接通向碳