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06-25-2004, 07:46 PM | #1 |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
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Where is your Tach "Illumination" wire hooked to?
On my truck, I have the Tach's Illumination wire hooked into the headlight switch up in the dash. But everytime I turn on my headlights, my tach goes semi-crazy. It looks like it's idling 500rpm higher, but as soon as I turn OFF the lights, the tach reads fine. Any ideas?
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