hi i like to know if any one knows why my 400 E starts and runs fine,
but when you drive it the eng goes up and down like its losing fuel.
i took it to a shop and the shop owner told me it was the fuel filter.
he replaced the filter but it is still doing it.
i was told that it was the eng wire harriness, i replaced it (need to any ways)
but the same thing. now im told its the mass air flow.
can some one help me!!!! lol