Ok its a 1997 civic dx hatch. No swaps or anything completly stock. Its my daily driver and it keeps blowing fuse 15. Its the fuse marked sp sensor/alternator. So my speedo will quit and i get a cel. I had the alt tested at advanced auto and it tested good. When the fuse blows all the lights in the car pulse to a sound comming from the alt. Put the fuse back the noise and pulse goes away untill the fuse goes again. I tried unhooking the alt and starting the car but a soon as the ignition goes to the on position the fuse pops. This all started happening about 3 days ago. When it first happend I replaced the fuse thinking it was just a fluke and it worked the rest of the day. It happend again and i didin't have time to look at it so i just poped another fuse in and went home. Now it just blows fuses immediatly. Im gonna try a dif speed sensor tomorrow I actually unhooked the speed sensor and tried the fuse but it still blew. Has anyone had this happen? Any Exp or insight would be greatly appreciated.