Ballast resistor wiring
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New User
Joined: May 2005
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Ballast resistor wiring
I've now burned up 2 coils in a month. Only thing I can think of is that it's a missing ballast resistor. The previous owner eliminated it. How does it wire up? I've only got a hot wire coming through firewall to the coil now. I see neat coil it looks like another wire is teed into the positive side. What do I do to put a resistor back in
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New User
Joined: May 2005
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this has just gotten worse, replaced module today, got 1 mile, replaced coil again got 1 block and now seem to have no power to the ignition system. Sleeting and raining so I'll look again in the morning. Could it be start solenoid or ignition switch?
Senior User
Joined: Jun 2003
Posts: 390
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From: Rose City, MI
i used the diagram in the back of the haynes manual to change from tfi module ignition to the duraspark set up. I made me a wire harness and spliced into the old power wires from the tfi. I still have the square coil hooked up to it with no resister wire. It runs good until i hook up the vacume advance. When i get some more cash i am gonna add the resister wire and a round accel super coil and see what happens when i hook the vacume advance to it. I would say put a new resister in and see how it runs. The reason why i switched it over to duraspark is because my tfi set up kept burnin up coils. i went through 3 in about 1 hours worth of driveing.
Tuned
Joined: May 2003
Posts: 345
Likes: 4
From: Southern IL
The easiest way I see is to just get an aftermarket coil made to run on 12V, period. Duraspark uses 12V on the crank and 6V on run, or something like that. That's why the resistor prevents your stock coil from burning up.
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