What Are These Colored Wires On My #9117 DIS Tach Adapter for?

  • Red & Red w/ Green stripe = wired in-line on ignition coil power supply that powers all coils. Installation varies widely from vehicle to vehicle. See Installation Information or Ask A Question sections for further information.
  • Black = common chassis ground
  • Gray = tachometer signal output, connect to Green wire on tachometer