On older Civics, like 88-95, there is a blue connector near the driver's
shock tower for hooking up the tack. On 96-2000, I would remove the
instrument cluster and tap a wire into the tach signal wire on there.

Cyberbilly wrote:

> I have a 2000 Civic DX. I want to install an aftermarket tachometer
> and need to tap into the electronic ignition control box to get the
> tach pulses. Question: Where is the electronic ignition control box
> located on the car? Thanks. -CB