I have an HKS turbo timer that I want to install in my S13. It doesn’t have an S13 harness though. Anyway, it has a red, green, blue, black and grey wire. I know red is battery, does it go to a red wire on the 240? Apparantly blue and green are ignition, what colours do those match up to? I dont know what grey is… Black is ground which is pretty obvious. Thanks!
k i dont know the colors, but one goes to ure e-brake so someone cant steal the car. and 2 go to the ignition. run and start i think. if no one can help u out pm me and ill look at mine. Its an apexi, but it might help.
go to the HKS website…it has wiring diagram!