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Thread: MSD 6a wiring
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Old 10-22-2010, 08:00 PM
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eloc431962 eloc431962 is offline
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Sounds correct to me. Old box or new? You can test the box by jumping a small piece of wire into the mag pickup harness after unplugging it, green and violet together, unhook the coil wire from the distributer,and let it sit about 1/2" from a metal engine part, find and touch the white wire to ground, and every time you do this, you should get a spark out of the coil wire. If you do not get a spark, change the coil, or look to make sure you have it hooked up properly. The boxes don't go bad that often but they do sometimes, But most of the time it's just hooked up wrong , it has bad connections, bad wiring on the car, or bad grounds. One mistake is hooking the small orange and red wires together on the coil, the only wires on the coil should be small orange on the + side of the coil and small black on the - side of the coil.

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