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I just installed a Sunpro tach that I found in my trunk from the previous owner. It did not come with instructions but I've installed Monster Tachs before and they always had pigtails to cut depending on number of cylinders. The Sunpro tach doesn't have these pigtails. The tach works, however, it seems like it only reads about 1/2 of the actual rpms. I used the yellow/green wire as a tach signal on the ignition coil connector because the wiring diagram shows that it is the negative side of the coil. What did I do wrong with this install? Is there another yellow/green tach signal I should use?
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Semper Fi til I die!
1993 Fescort GT 1.8 BP automatic Kia Rio front struts and cut springs Cut Front Festiva springs with Monroe Aspire struts in rear
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Look for a 3 position sliding switch, with a square black knob. It will be recessed, so you put something like an ink pen cap in it to move the switch. The 3 positions are 4 cylinder, 6 cylinder, 8 cylinder.'88 Festiva L, stock carby engine (with exhaust upgrade), 4 speed tranny. Aspire Struts and Springs, Capri 14" wheels, interior gutted, battery in back
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"Your God of repentance will not save you.
Your holy ghost will not save you.
Your God plutonium will not save you.
In fact...
...You will not be saved!"
Prince of Darkness -1987
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Thanks for the help guys, I went outside and unscrewed the tach from the mount and sure enough, on the back of the tach was the cylinder selection switch. It was set on 8 so I turned it to 4 cylinder setting, now she works properly.Semper Fi til I die!
1993 Fescort GT 1.8 BP automatic Kia Rio front struts and cut springs Cut Front Festiva springs with Monroe Aspire struts in rear
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