i have a 93 lx 4dr with a b15b7 i just bought a y8 out of a 99 ex that my friend swapped out in favor of a b16a,i have tha motor ,tranny , and ecu..i know tha motor will bolt right in,but what has to be done for vtec to engage example would i have to swap entire harness and convert to obd2 or "hopefully" will it be easier than that,will i need to use tha ex ecu or what.....PLEASE HELP,my 102hp is killing me,i hate crawlig up hills....

I believe this is correct:
B12 - Vtec Solenoid
C10 - Vtec Pressure Switch