Question about 1986 Oldsmobile Cutlass Supreme

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Wiring in a tachometer

I am putting a tachometer in a 1951 chevy ;that I am restoring and can't get it to work. I have hooked the ground wire to a good ground, the hot wire to a live source, the white wire to the light which works and the green wire (tach wire) to the negative side of the coil and nothing happens. Any help?

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The green wire should be on a pulse wire from the distributor, not the coil

Posted on Mar 18, 2009

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