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> Tach Signal, How to test...
jim_hoyland
post Jun 22 2018, 09:16 AM
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Get that VIN ?
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How can I use the multimeter to determine whether a coil is outing out a tach signal ?
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jcd914
post Jun 22 2018, 09:31 AM
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If the coil works there is a signal at the terminal on the coil.
The points or ignition module shuts off the current flow through the coil and it is the on/off flow of current that the tach reads.
Whether or not it is getting to your tach or whether it is correct for your tach would be the question.

You should be able to read it with a dwell meter, won't tell you the rpm but would verify a signal.

Jim
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