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Unread 02-13-2002, 09:43 PM   #1
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Join Date: Feb 2002
Location: Minturn, CO
Posts: 2
Post tach wiring

Can anyone tell me why I can't hook up an aftermarket tach to the tach plug on a factory '86 harness? The tach in question is a "factory replacement" tach from 4wd hardware, but same as all. In the instructions it says not to wire it to the factory plug. And I tried it and it doesn't work... Does the factory tach use some crazy wiring? Thanks

93vert is offline   Reply With Quote Quick reply to this message
Unread 02-19-2002, 11:28 PM   #2
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Join Date: Jan 2002
Location: Mississippi
Posts: 3

The factory tach uses the jeeps ingnision(spelling?) to get a signal. The factory replacement tack needs to be run to the tach side of the coil. Then to power and ground.
CR SETH is offline   Reply With Quote Quick reply to this message

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