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Old 07-11-2014, 10:19 PM   #1
plumbers crack
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Join Date: Dec 2013
Location: Ont Canada
Posts: 65
Tach with Lil fuel gauge

I found one after searching dozens of yards. I cleaned it up, painted the needles and installed it and the fuel gauge works. Does any one know how many pulses the tach needs to work? I have a few options for signal out put for the cummins but need to know the pulses so I can order the right unit.

The donor truck was a top kick with the 8.3 or something non turbo cat engine.
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1990 GMC R35 CC dually, VE cummins, 47RH
2005 Silverado ecsb, 5.3, 2/4 drop, daily work wagon
2000 Yukon xl, 5.3 all stock, wife's truck
2007 Yukon Denali, 6.2 back up truck
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