I bought a universal tach and I just need to know a few things. Where is the tach signal wire located on a 99 civic EX? The guy who sold me the tach told me that it is near the shock tower on the drivers side, he says its a solid blue wire, then he tells me that the wire is near the distributor and it is in a connecter that has only 2 wires coming out of it. I found that one but he said it is solid blue when the one I saw has a black stripe on it. I attached pictures of the only connectors I see wth blue wires coming out of them. Can you please tell me which wire is the tach signal?

I need to know ASAP!!!

The first pic is the connector with the two wires coming near the distributor with the blue wire with the black stripe, the second pic is also a connector near the distributor and the third pic is of the connector near the shock tower.

 

the plug coming form the distributor... the 8 pin plug. there will be a blue wire on the distributor side of the plugs and nothing on the other side, that's your tach wire. The 99-00 EX models don't have the tach wire run to the shock towers, the tach signal comes from the ECU.

personally if you're putting the tach on/in your dash... I'd hook all the wires up behind the cluster. Power, ground and tach signal are all right there. no long wires to run.
tach - solid blue
power - solid yellow
ground - solid black

 

Is the plug in the second pic? 2 people on other forums are saying it is the wire in the 3rd pic.

 

the sole blue wire hanging out by your hood prop would work too. You're doing a bit if backwards wiring there, it's fed from the Cluster which is fed from the ECU.

If I were you I'd still hook everything up behind the cluster, but it's up to you man.

 

hooking it up behind the cluster would be a much better way to do it. This way you dont have to worry about the tach wire grounding on the hole in the firewall you had to run it through.

 

Well I will hook it up behind the cluster if you tell me where to hook the wire up too. Is it only going to be one wire? Do you have any pics or diagrams for where I hook the wire up too? I need to know ASAP.

 

pull the gauge cluster....its the solid blue wire

 

Is it only like that on Civics with tachs? The reason I want to know is that I am suppose to be getting a DX cluster for free, I would like to use that so I wont have 2 tachs. If I do that will I have to hook the wire to the blue wire near the hood prop? But if it is easier to hook it up behind the cluster I will just do that. Let me know something ASAP!!!

 

every civic is pre wired for a tach....pull the gauge cluster, its the baby blue wire.

 

Even if the cluster does not have a tach? It's baby blue? I thought it was a little darker? Is it the color of the blue wire in the second pic?