Dc4one8

I just recently swapped a b16a2 in my 95 ls using my stock harness I know there's 3 wires for vtec including the ground I pinned them into my ecu and still not engaging is there anything else I need? And when I got the motor it had a single plug dizzy so I wired up my 2 plug dizzy wires from ls to it car runs great otherwise and now that I have the 2 vtec wires to ecu doesent throw a cel anymore but still get 1 long blink code