i was making some new grounds for my car using 8 gauge power wire, and accedentaly ran a wire from my main 80amp fuse in the engine compartment to the negative battery terminal and it blew some thing up. I have no power at all, no fuses blown either i checked underdash and the ones in the engine bay. please help fast.

 

I will help you by buying your car at rock bottom prices. If that doesn't work for you, go grab a multimeter and trace things back to your battery.

 

Is the battery dead? Did you ground the + terminal???

 

the battery was fine before. there are 2 screws holding the main 80amp fuse into the fuse box, i unscrewed the bottom screw and ran a wire from that to my battery and then zap sparks and then no power at all, no blown fuses either?

 

Which side of the main fuse did you put this grounding wire? If on the "wrong side", then the main circuit wasn't protected, the fuse wouldn't have blown, and you basically turned your battery into a power source for an arc welder...
Did the wire get hot at all?

Some of you younger guys may not have read all of my rants and tantrums in the past on grounding these cars. I recommend performing a little search on the topic using my name. You may not agree with everything I state, but considering I've been an aircraft electrician (formally schooled) for the past 20+ years, I'm not just pulling this s#it out of my a$$...

 

i actually just got done reading a post you replied to wayne88n/a, i did it to the side with 2 10mm bolts screw into the main fuse. no wires got hot, and i was just messin with my car and all of a sudden the power just misteriously came on, i started it and then shut it off went to start it again and then it went dead completely.

 

Hmm, you did something I can't picture in my head yet- if you shorted that ground wire to a power source (the bus bar on the side of the fuses), the wire should have gotten very hot very quickly, with maybe some arcing and sparking going on.

But you're telling me stuff came to life, huh? Was the key ON in the ignition switch?

Did you smell any smoke at all? What is your battery voltage now?

For now, remove the damn extra ground wires until you figure out what you've fried...