As most of us know our tachometers are not the most accurate in the world. So I am wondering whether it is the signal at the cluster which is bad or if it is the scale on the actual display which is out.
The reason I am asking is, I just bought a new wideband and I want to hook up the tach signal to it for ease of tuning. If I tap into the back of the cluster will I be getting an accurate reading? Or is there a better place to tap into?