Da short when turn of key!

ok i have did a engine swap in my 90 obd0 DA9. i got a hybird b18c block with a b17 head. ok i have wired everything. But im confused because when i turn the key on but not all the way everything works fine. but when i turn the key to start the engine. its seems to short out and the engine dont start and the cluster lights turn off. im so confused and i hate wiring please could someone HELP me!

 

Is it blowing the alternator fuse?
I had the same problem with my old crx, when I tried starting it, it blew that fuse and it would not start. Turns out a wire that was hot when the key was turned all the way on shorting out.
Hope that helps, G/L.

 

dose it blow any fuses or dose everything come back on when you return the key to the "run"positon?

 

your battery isnt grounding good enough..