92 bronco 351w, #10 fuse keeps blowing, causing the bronco to act like the injectors need cleaning, this happened once b4 with the powerpoint fuse, but the mechanic cleared the code and i replaced the fuse, and then the trans. was overshifting cuz the code threw it into failsafe mode...but this time the fuse keeps blowing immediately! whats wrong? relay, voltage regulator?