power
I have two tachs hooked up together to the same 12v constant power.I accidentally pulled the wire loose and they still work.How is this possible.Also i have the ground on both tachs hooked to the same...
Forum Discussion
GordonThree wrote:I have two gauges but not two tachs.I have a tach and a vacuum gauge.It is a 92 chevrolet p30 chassis with a 454 big block.The coil is a 92 hei.The type that has the 2 plugs with 2 red and 2 white wires.I hooked the signal to one of the white wire and it is a little jumpy and not reading right.The needle is moving without any unswiched power hooked up.That is what puzzled me.I got the gauges from glowshift and they offer a filter for the hei.I will be giving that a try.
just curious, what is the benefit of two tachometers?
