问:本田思域LX 2004。整个电气系统的闪烁的引擎。新电池和发电机测试。

2004款本田思域LX。.The entire electrical system pulsates, along with it the engine while driving. New battery and had the alternator tested three times..Replaced ground wires too..Been driving it like this since February. Sometimes it runs normal on any type of weather. No error codes detected. Some say its the main relay. Would the car even run with a bad main relay? What could be the problem?
我的车有一个手动变速箱。