Quote:
Originally Posted by Dangerous Doug
Bob,
Fired up my Cobra for the first time on Saturday. What a thrill. Nice and loud with straight headers. The neighbors love me.
I noticed that the tach wasn't registering. I have an MDS distributor, but no MSD box. Using the ballast resistor. Meticulously wired both under the hood and under the dash.
Where do I start? I have a multimeter that picks up frequency. Should I check for pulse frequency at the coil and then at the tach? Is there something about my MSD distributor that isn't coordinating with the SW tach?
Doug
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Doug,
Check your ground on the tach first. I had a problem with my ERA Tach not working when the dash lights were on due to a marginal ground. Worked OK with the dash lights off. I ran a ground from the metal dash brace directly to the tach and the problems cleared right up. Hope this helps.
- Fred