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Old 04-02-2002, 03:35 PM
mbdoc mbdoc is offline
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
The tach needs a key-on power supply & trigger signal fron the ignition module. The trigger needs to be connected to green/yellow wire at the diagnostic connector. POSSIBLY the factory wiring harness has this 2 pin connector already there!!
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