Aftermarket Tach install... help
#1
Aftermarket Tach install... help
My factory tach has proven to be highly inaccurate. I have an automatic, but I still want to have a better idea of where my shift points are actually hitting... so, I'm installing a small digital Nordskog tachometer on the A-pillar.
I'm having a problem figuring out where to "hook up" one of the wires...
Red wire: Switched 12V... Got it.
Black wire: Engine Ground... Got it.
Purple wire: Switched Headlight circuit... Got it.
Green wire: Negative terminal on coil... DON'T GOT IT
Where do I hook up this green wire? I've looked at the wiring diagram in the Chilton manual and I think I'm supposed to hook up to the white/black wire at the coil, but I don't want to fry my gauge by hooking it up wrong. Is this the correct wire?
Any suggestions?
Thanks
I'm having a problem figuring out where to "hook up" one of the wires...
Red wire: Switched 12V... Got it.
Black wire: Engine Ground... Got it.
Purple wire: Switched Headlight circuit... Got it.
Green wire: Negative terminal on coil... DON'T GOT IT
Where do I hook up this green wire? I've looked at the wiring diagram in the Chilton manual and I think I'm supposed to hook up to the white/black wire at the coil, but I don't want to fry my gauge by hooking it up wrong. Is this the correct wire?
Any suggestions?
Thanks
Last edited by Will84; 10-22-2006 at 12:59 PM.
#4
Re: Aftermarket Tach install... help
I can think of three possible places-
1. The white wire on the coil that goes to your factory tach.
2. The white wire on the PCM for tach output. Pin A13(the red plug)
3. The white wire on the back of the cluster for the tach signal.(don't know which pin)
Regardless of where you hook it, you are looking for a white wire.
1. The white wire on the coil that goes to your factory tach.
2. The white wire on the PCM for tach output. Pin A13(the red plug)
3. The white wire on the back of the cluster for the tach signal.(don't know which pin)
Regardless of where you hook it, you are looking for a white wire.
#5
Re: Aftermarket Tach install... help
Thanks Bingo. I was thinking that I had the right wire, but I couldn't find anything/anyone to verify. I've already run the wiring up to where the coil is, so that's where I'll tap. The wire is white with a black tracer.
Thank you.
Thank you.
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