my tach stopped working last night-it was jumping from operating rpm to zero,back and forth and then quit--all wires on the back of the tach look good--the tack lights and directional indicator work---going back to the engine compartment(subie) theres a brown wire loose just under the stinger box-it has a female plug on it-looks like that wire goes thru the hole in the firewall-on the other side of the wall theres a loose blue wire with no end on it and no exposed wire-this blue wire is in a loom with a black and a yellow wire and the blue wire would barely have reached the brown wire--before I connect the two I need advice---thanks,jerry
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