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Old 10-19-2016, 06:11 PM   #5
davepl
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Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,334
Re: Tachometer Not Working

Definitely check the ground. Then verify you have 12V power. Then confirm that you've got the TACH signal from the second tang of the HEI connector going to the tach (brown wire).

You didn't mention wiring in the tach adapter. Did you do so?
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