C cotys86gt New Member Aug 26, 2009 1 0 0 Aug 26, 2009 #1 Aug 26, 2009 #1 im trying to find what color wires coming from my firewall will feed my coil/tach, and i dont have any wire diagrams, any help?-coty
im trying to find what color wires coming from my firewall will feed my coil/tach, and i dont have any wire diagrams, any help?-coty
Celeb Dirt-Old 20+Year Member Sep 8, 2002 736 13 59 Here and there Aug 26, 2009 #2 Aug 26, 2009 #2 On the Gray Harness: ---(red/light green - 16 Ga) to the ignition trigger/turn-on lead. On my MSD it's the thinner red wire. ---(Dark Green/Yellow - 20 Ga) to the negative side of coil or the "tach out" port on an MSD. This is the line to your stock tach.
On the Gray Harness: ---(red/light green - 16 Ga) to the ignition trigger/turn-on lead. On my MSD it's the thinner red wire. ---(Dark Green/Yellow - 20 Ga) to the negative side of coil or the "tach out" port on an MSD. This is the line to your stock tach.
