s13 sr20 swap problem HELP

[change]

hey there,

so i have a 91 hatch with an sr swap, the car was originally an automatic but was swapped to a manual. the body was really beat up so i found a 91 coupe in good condition and am swapping everything over. I used the lower engine harness and all the other wiring for the sr. everything is plugged in and now i have no power to any accessories. the fuel pump does come on and the engine cranks over, have not cranked long enough to try to start. The headlights come on but the they do not pop up, nothing on the cluster works no windshield wipers no blinkers no brake lights. I jumpered the two wires that you need to for the manual swap. everytime i connect the ground cable to the batterey terminal it blows the 75amp alternator fuse instantly. Im guessing a lot of the accessories run by that fuse so that might be the main problem. what would cause this fuse to blow everytime i connect the battery. all of the alternator wires are connected. I tried the 8mm bolt and small wire in boths holes that it fits into on the alternator with the same results. Im stumped. anybody got any ideas?

thanks,

Mario

[Z U L8R]

use the lower harness for your ka, not the sr lower harness. more than likely it's popping the fuse because of that rectangular black plug in the lower harness, there's a beefy power there and a ground. typically on your ka lower harness it should only be one beefy white wire which is power. since you're using the sr's lower harness it may have 2 beefy powers and when you plug it in you're creating a huge short to ground. try unplugging that black plug at the fuse block all together then hook up the battery and see if the fuse doesn't blow.

Dave

[cincyse_ryan]

you blew your main fuse... check it i had the same problem. its a 75A

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thanks for the help guys. it is a ka lower harness. i know i blew my main fuse, i thats what i posted. figured it out. The plastic piece that goes in between my alternator power wire and the alternator itself was missing so it was shorting to ground there and poping my alternator fuse which sends power to all accessories.