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Old 07-09-2013, 09:22 PM   #1
Kyoshi
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Join Date: Sep 2012
Location: Eastern WA
Posts: 16
tach problem

I recently installed an aftermarket tach its a summit brand changes 7 different colors. I got it all wired up and it works fine but when i'm driving it constantly changes colors on its own. Pretty sure all the wiring is good the only thing I can think is maybe the ground is bad? Anybody had this problem?
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