Tach Signal, How to test... |
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Tach Signal, How to test... |
jim_hoyland |
Jun 22 2018, 09:16 AM
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#1
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Get that VIN ? Group: Members Posts: 9,467 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
How can I use the multimeter to determine whether a coil is outing out a tach signal ?
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jcd914 |
Jun 22 2018, 09:31 AM
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#2
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
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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