I know everyone gets mad when someone asks about vtec but I still need help. If I am converting from non vtec to vtec what are all the wires I need to plug into the ecu manually. I know I need to plug in the vtec pressure switch and the vtec solinoid, is there any other wires. I swaped in a SOHC vtec ZC into my 92 civic lx. I was told to use old engine wiring harness and then manually plug in vtec wires to the ecu. Hopefully there is a way to get my vtec to work without going and buying a whole new harness.