Yeah, you really did not want to cut that. Normally people use the KA lower harness to handle the starter, alternator and tranny sensors.
I have a pinout of those plugs somewhere if you want but in your case, I think your best bet is to solder the ka lower harness back exactly as it was before.
Heres a back up of the old sr20 hybrids page on how to wire the S13 into S14 swap:
http://web.tampabay.rr.com/hsaini/PI...ionIntoS14.pdf