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Conventional Tach on LS2

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02-23-2011, 10:59 PM	#11
TR65 Senior Member Join Date: Nov 2007 Location: Greenville, SC Posts: 873	Re: Conventional Tach on LS2 DirtyLarry, Thanks for the kind words. I love driving the truck with this swap. Yep, I am using the 4 cyl setting!! Sorry, I read the switch wrong. If I get a chance this weekend I will put a scope on that signal and see what it really looks like. 67, Maybe the signal is just marginal and the gage is dropping "tops" making the needle erratic. Does your harness use a pullup resistor? Maybe that is the issue. TR __________________ 1965 C10 SWB Fleet Two owner LS2 Swap Thread http://67-72chevytrucks.com/vboard/s...d.php?t=413880

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