noob with problems

[jonnyboy89]

the other day i was wheel spiinig like a melon and my speedo stopped working.

the next day my car died at a junction and i had no juice left in my battery...
called the RAC and the guy spotted that the fuse that controls the speedo sensor and the alternator had blown, so we replaced it and tested the car, drove it and the fuse blew again, so we disconnected the speedo sensor and tested it and it was fine, so i drove home but by the time i got home the fuse had blown again, ive replaced it and left it ticking over for an hour and the fuse is ok still, ive reved the car to check if the alternator is blowing it but it doest seem to be that, ive used a multimeter to check the voltage and with my lights on high beam, heating on, stereo on, power steering pump on full, its around 14.2v - 14.5v so that should be ok right??

i disconnected the alternator to check if that was causing the problems, replaced fuse, drove around the block and it blew again so it cant be the alternator can it?

so im guessing its a lose wire or connection somewhere that causes me this trouble when the cars moving??

please help, im new lol

 

[blinx9900]

I'm not too good about wiring but check all your grounds, sounds like you do have a + wire somewhere that may be grounding itself or you don't have a good ground on the - side...