What is the SP sensor and why does that fuse aka alternator fuse keep blowing?

Its on a honda civic,the fuse labeled alternator/sp sensor keeps blowing. Alternator was bad and new put on.

What is the SP sensor and why does that fuse aka alternator fuse keep blowing?
CHECK THE WIRING HARNESS FOR FRAYED WIRES TO THE ALTERNATOR.IT COULD BE GROUNDING OUT ON THE MOTOR.
Reply:Found this on a forum:





Sp sensor and Alternator fuse keeps Blowing(98 Civic)


the 7.5 amp fuse is the speed sensor fuse (under the steering wheel fuse box) but its also written alternator on the fuse panel. Thats the fuse that keeps blowing not the 80 amp one under the hood.





I have just called out the RAC (British car rescue) and the engineer has fixed it in half an hour by covering a black with yellow stripe wire with insulating tape. This is located on one of two adjacent plugs deep inside the bonnet behind the air inlet. The plugs are close to something to do with the speedometer. I have not driven any distance yet to prove absolutely that this is the solution, but the engineer demonstrated the problem with the car stationary by repeatedly blowing the same fuse by wiggling the wire.