I have an 89 DX hatch. It is an automatic but my friend's dad is giving me a really nice tach for free from his truck that he doesn't use anymore. I know it is kind of ricey to have a tach on an automatic but I am doing it just as a monitoring service mainly. I don't wanna make it look all cool and I am mounting the tach in a spot that isn't even visible from the outside of the car. I am just curious to see what RPMs my car is at most of the time and stuff. When the power really kicks in and so forth. How do I connect it? I eventually wanna get the gauge pod that has the tach in it, but this is a quick fix for me. Where do I run the lines and such? Will there even be a spot?

Thanks.

 

Find the rpm wire on the ecu (i dunno the spot but it'll be solid blue) and run it to the tach, then hook up power and ground.

 

Anyone have pictures or anything?

 

easy way to do it is to hook it up to the wire on the plug that plugs into the gauges.. every ef honda has the same wire harness. its a blue wire. but i forget if you have to hook it up to anything els.how many wires is coming out of the tach? and if it has a light you have to connect a power wrie to a switch 12v fuse under the dash.