ok my sig car, so my friend had the bright idea to hook my amp cable directly to my alt, and it work until i had moved some wires around and got a phone call and forgot to move my cable from the header and drove off.. so about 10 mins lata my trunk starts smoking and the the rest of the car. so i moved it and everything seemed fine until i try to start it .. no battery. changed alts and still no charge. battery is good cuz it sill holds charge. will charge the battery in the morning and drive for like 15 mins and wont even have a click. i have disconnceted radio and all eltrical accs.need help cant figure it out.

 

double check your positive or ground cable? maybe they friend from that wire grounding out on the header?

 

i dont get it explain a lil more plz.

 

You might check the smaller wire that runs from the battery to the altenator. I can't remember if there is a fuseible link in it or not. But you might have burnt that wire out. So... your saying. You charge it, then it will run for 15min, shut it off and it won't start. Right? If that's the case it sounds like that wire is bad.

 

Oh.. and you always install a fuse block when installing audio stuff. Just think how much money it would've saved you.
But you should always hook-up any wiring through the battery(or a circuit after the battery)... it will act like a storage tank for electrical energy. When something takes alot away at a given time. It will not affect the rest of the electrical system as bad.

 

i do have a fuse block with a 90 amp fuse. everything (audio) is fine it just got so hot it started smoking. i already changed that wire cuz the plastic was melted off it.

 

Is the battery warning light on inside the car? My Chilton reads that if the alt is not producing any current... the light will be on. You might take the alt off and get it checked out.?. I've had bad ones before.
Other than that my Chilton manual isn't any help. It doesn't really give me a troubleshooting guide. That one wire is about all I can think of for now.

 

no i have no gauges since i took out the computer. that is exactly where i am too

 

Have you checked all your fuse? In the wiring diagrams for an '89RS it shows a tan/white wire comes from the "alt" into the "30amp FAN" in the fuse block. I don't know what it does... Might check if you haven't yet.

 

isnt the tan and white wire for the guage