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View Full Version : I screwed up all my electrical I think !!

opticnerv
05-04-2009, 12:47 PM
So I woke up on saturday excited to put my brand new eBay intake on, since it was the last thing I needed to complete my KA24DE swap. The installation went smoothly but then I connected my battery the wrong way I put the the negative on the positive and the positive on my negative. I fried most of my fuses. I replaced all of them except my alternator fuse. When I jumped my alternator fuse I got all of my interior accessories to work again. But the problem now is that I can't get my ignition coil to spark ! I cant find the relay for the ignition coil either my fuse box has it labled but theres no relay or slot for a relay there. Does anyone know what could be wrong.

89 240sx ka24de swap
Ka24de harness

No motor fresh paint little rust 500 bucks
http://i157.photobucket.com/albums/t71/opticnerv/Picture087.jpg

after I dropped the motor in :)
http://i157.photobucket.com/albums/t71/opticnerv/Picture058.jpg
army240
05-04-2009, 03:23 PM
Try a new coil... it might be blown!
opticnerv
05-04-2009, 04:53 PM
That's what I told my pops but he said they rarely blow and I had a spare one( unknown condition) and that one didn't work either. How possible is it to blow a coil
Addicted2Kouki
05-05-2009, 01:23 AM
What do you mean by jumped your alternator fuse?

I hope you didnt go and put a piece of metal so it would bridge the electricity but leave the wires unprotected?
ANVIL
05-05-2009, 09:11 AM
get another alternator fuse. also a chance you blew your fusable link by the battery
opticnerv
05-06-2009, 10:04 AM
If I blew my fusable link would it stop making the ignition coil spark ? Could the ECU be fried ? Could the Ignition Coil be fried ? Which one do you guys think is all cooked up ?
ANVIL
05-06-2009, 12:46 PM
ecu could be fried. seen it on a few cars, blowing the alt fuse then ecu fries. probablly because u rigged the alt fuse... shouldnt jump it... thats what its there for so you dont damage other stuff
opticnerv
05-06-2009, 10:47 PM
Yeahh I took the ecu out and took a look I fried a diode I'm replacing it in the morning. I didn't make it to the electronics supply store in time. I'm thinking its the ignition coil relay, its a tiny little relay near the ignition coil. Has anyone ever had that blow out ?