I need help. I have a 92 mustang lx and I'm trying to install a APC tach with shift light. I'm honestly confused. If anyone knows how to install help is greatly appreciated. Thanks
I tried to link to a diagram but it won't work for whatever reason. Google image search 'tach install' and you will get what you need. It's very easy to do.
I got the tach to light up but now the problem is getting signal to it from the coil I have tried hooking it to the tan wire with a yellow tracer but no signal. Any ideas??
Typically for tach installation, there are 4 wires: The wire colors given here are for wires on the car, not for the tach. The tach wires may be different colors.
1). Switched power from the ignition - tap the red/green wire on ignition coil.
2.) Illumination - tap the light blue/red wire in the radio mount area.
3.) Tach signal - tap the dark green/yellow wire on the ignition coil.
4.) Ground.- find a clean, shiny, bare metal spot under the dash or in the radio mount area.
Sorry, I missed the fact that you had a 92, the wiring colors are different, The tan/yellow is the correct wire to use for the tach signal. If you wired up everything else correctly, the tach doesn't work...