Ricky240sx

I changed the alternator think it was bad, so thats not the problem anymore. Bought a new battery for it, it started up fine no problems at all, next morning the new battery is dead.
What can it be? i did find a ground wire coming from my main harness not hooked up

tommyboy

that definately could be the prob, just go through and check for any disconnected wires, or a blown fuse. Also check to see if you accidentally hooked up something wrong

-HyJynX-

Check all the wires, grounds and etc

Ricky240sx

On the s13 harness there are some plugs that will not be use right?

-HyJynX-

I believe so

Ricky240sx

On the tranny harness is there a ground wire on it?

-HyJynX-

Im 99% sure there is