There is a ground on the coil itself that needs to be on. There is are two that attach on the passenger side, one to the fire wall and the other to the fender. One of these is for the ECU that could have been left off on an AFC install. On the driver side there is one that goes from the fender to a bolt on the trans and there is another ground next to the fuse box. That's all I can remember. I sold my Contour last December so details like that are a little fuzzy.
