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Auto meter tach reading low
I have been runinng this monster tach without issue for some time. Well I got moved to TX and go to take it for a spin. Well I notice that the tach is reading low compared to the VHX cluster tach. I have done the ground thing, even added two more chassis to firewall /frame.... I am running one lead off the MSD and then I have a hard connection to split the feed into both the auto meter and the DD cluster.. This was working flawless for several months.. Ideas??
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