Hey, my zetec's ignition coil was changed a week or so ago when I changed it I noticed the 3 wires that are usually in a harness that connect to the bottom front of the coil weren't in the harness they each have a metal connector on them and are plugged in separately there is, a black and orange wire, a bright blue and green wire, and a black and green wire. Well the orange and black wire is connected directly to my negative battery terminal. So my question is, is this wired correctly? And could this be the cause of an engine misfire? Also, if any one knows the order of the wires going into the coil.