12-22-2008, 08:42 AM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,409
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Not Ranked
Dan..
The newer tachs do not need a tach adapter. Yours is the newest style based on your car number. I remember reading about a problem someone had similar to this once before. I'm sure the the MSD tech people can help you out on this one, or Dennis Olthoff. Is this a Roush engine? they would also be a good resource. Check the easy items I mentioned and then follow up with these resources. And remember to post what you've learned here on CC. Just to be sure here, your tach signal to the MSD is coming from the "black/white" wiring on the back of the tach loom right? You have a small "red" power supply going to the ignition switch. Then the big "red" and the big "black' as mentioned earlier.
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