I just need to know if this is the right wiring diagram for the ecu on my 90 civic, it shows a vtec wire, which my car shouldnt have, but when i checked my ecu that Vtec wire WAS there. Im hooking up a VAFC and i was just wondering if this is the right ecu diagram, all the other wires i hooked up work on my VAFC, but i havnt tried hooking the Vtec up yet, cause i dont know if to use this wire and trace it, or just run my own wire. If you can look at the pic and let me know what you think that would be great thanks.