I just got a Buddy club V-CON VTEC controller it has 5 wires
RED for ignition power
Black for ground
Green for rpm signal
Yellow for Vtec solenoid signal output
Grey for Vtec solenoid signal input
i know its not the best but i just want vtec to work until i can afford a ecu swap or hondata
ok I have 1989 Honda Civic SI with D16A6 block with D16Y8 head
I'm using stock SI ECU will the Vtec controller work the Vtec on its own or will i need a Vtec ECU

if it can work Vtec on its own wich color wire do i need to hook up to the blue vtec wire and to the green vtec wire and is the black vtec wire just a ground