Im running an msd ignition 6al module, with msd coil. I have no power in what the coil used to connect to, ( red and green) and ( dark green with yellow spots) i checked for voltage and only the positive side of the coil had voltage ( red and green) however the negative side has none, how do i fix this?
Electrical Mustang 85 gt, no power to coil
- Thread starter Mmtt
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Quick and dirty answer - ditch the MSD box and coil. Why? They have the highest failure rate of anything here on Stangnet. If you have 12 volts on the red/green wire going to the coil, then with a stock ignition, you would have the voltage needed to make the ignition work.
Duraspark II ignition diagram:
Plan "B" if you don't have the Duraspark box still around.
Duraspark II ignition diagram:
Plan "B" if you don't have the Duraspark box still around.
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You may not be getting a pulse from the distributor. What do you have for tools like a noid light, voltmeter or spare distributor?
The GM HEI module is less than $25 at any of the major auto parts stores. It might be your best bet. Or you can go to the junkyard and get one for less than $10, then take it to one of the larger auto parts stores and have them check it for you.
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Use the noid light across the purple and orange wires on the distributor. You'll need to turn the ignition on and crank the engine. You may find a helper useful at this time.
My Mechanic checked and he is saying the coil don't get power once the engine is heats up.
J, I really like the HEI module idea For cost and availability..
It must be mounted on a metal heat sink surface with the paste, and buy two good ones, keeping one in the car as a back up. It’s not just the Ford modules that are subject to bad copies. We had a whole box of the Hencho in Mexico AC Delco ones that were defective at Autoworks.
It must be mounted on a metal heat sink surface with the paste, and buy two good ones, keeping one in the car as a back up. It’s not just the Ford modules that are subject to bad copies. We had a whole box of the Hencho in Mexico AC Delco ones that were defective at Autoworks.
Quick and dirty answer - ditch the MSD box and coil. Why? They have the highest failure rate of anything here on Stangnet. If you have 12 volts on the red/green wire going to the coil, then with a stock ignition, you would have the voltage needed to make the ignition work.
Duraspark II ignition diagram:
Plan "B" if you don't have the Duraspark box still around.
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