Efi fuse blows when I turn ignition switch

2005 4 cylinder. I've just replaced the engine 3000 miles ago from foreign engines. When I was driving the car shut off by it self so I checked the fuses and replaced the blown efi fuse but as soon as I turned the ignition to " on "it blows again. I sprayed starting fluid while cranking and still no ignition. I replaced the distributor and still no luck. When I hear for the hiss from the tank no noise but I've checked it before this problem and I still didn't hear anything. :

I placed a 25 fuse instead of 15 and I drove about 1/2 mile before it blew. Then I saw that the alternator bolt was glowing red at night. The alternator wire seem to have been taking some serious heating (they are black). My best guess is that there is a shortage from the alternator wire leading to the fuse box but where is the question and why the alternator blows only the efi fuse? The same wire from the alternator leads to the fuse box apparently but not sure for the efi fuse. The wire from the alternator is white and large attached to the alternator by a stud. Anymore advice please?