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Old 03-29-2017, 10:46 AM   #1
blazer2007
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Join Date: Jan 2007
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wiring a 86 ish firebird tach

I got this tach from a firebird and was wondering if I could make it work on my 78 chev truck,it is a close fit in the gauge panel.I just don,t know what the bottom 3 leads are for,one says B but no markings on the other 2
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Old 03-29-2017, 04:35 PM   #2
ray_mcavoy
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Re: wiring a 86 ish firebird tach

The bottom 3 leads are where the control circuit connects to the meter movement. You don't need to make any connections there. Just hook up the top 3 "coil", "gnd", and "12V" connections that you have labeled and that's it.
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Old 03-29-2017, 08:34 PM   #3
blazer2007
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Re: wiring a 86 ish firebird tach

that,s what I was hoping thanks,my electrical sucks except basic wiring
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