I replaced the engine in a 02 Ford Focus 2.0 SOHC. And went to hook the battery up and and noticed the it was sparking a lot. So i did it again, and noticed why it was sparking is cause the power wire on the alternator was touching ground. So I fixed that and now I have no power when I hook up the battery. I checked all the fuses and nothing is blown and nor are any wires melted. Any one know what i can do?