Easy Tachometer Installation!!

[dirty_drew]

Is there any way to do this without pulling the dash?

98 S10 2.2L btw

[deathphoenix99]

Well, you could make it harder and go to the coil packs instead, but you will have to go through the firewall. Its not hard to take the gauge cluster out and just tap into the wires right there, every wire you need for the tach are right there at the cluster.

[dirty_drew]

alright I got back there, found the white wire. Which wire is for the dimmer lights? the orange or orange/black stripe?

[deathphoenix99]

It should be a grey wire.

[dirty_drew]

I found one grey(ish) wire. Just to confirm is it on the blue clip side, #2?

[deathphoenix99]

idk, i'm just looking at wiring diagrams, easiest way to tell is hook up a voltmeter and see if the voltage is variable with your dimmer switch.

[dirty_drew]

Is the radio power source the yellow wire that goes into the radio?

Sorry bout all the questions, I know almost nothing about electronics

[jc71corvette]

Isnt there the wire to splice into at the passenger side? Totaly avoiding taking out the bezel and that bs.

[deathphoenix99]

Quote: Originally Posted by jc71corvette

Isnt there the wire to splice into at the passenger side? Totaly avoiding taking out the bezel and that bs.

Probably, i'm sure the wire is right at the ecm too, I just don't know the easiest way to locate it from expierience since I have a 94 and I know the easiest way to hook it all up is right at the cluster. I mean, if you want to run the wires and keep it all clean looking, then you need to take apart the dash regardless.

[702s10]

It will make your life a lot easier just to take out the bezel and the front part of the dash. Everything is right there to work with..

[bubagump17]

I have a little sun pro tach i just bought. Can I splice into my headunit wiring and have enough power to run them both?

[deathphoenix99]

Quote: Originally Posted by bubagump17

I have a little sun pro tach i just bought. Can I splice into my headunit wiring and have enough power to run them both?

Yes, this is how I wired up my tach, but you can also run it all from the gauge cluster since its also there.

[bubagump17]

I have a 4.3 does it work with this i spliced into the off white one and no signal

[dirty_drew]

Ok I got the tach signal wire installed and i need to know which wires to splice into for the power and the dimmer light.

I need to know which wire to splice into at the dimmer control switch.

I also need to know which wire to splice into at the radio. (Preferably when the ignition is on. I dont want a constant power source to drain the battery)

I have no diagrams so any info would be EXTREMELY helpful. Please only post if you have tried this before and KNOW it works.

Thanks.

[dirty_drew]

Quote: Originally Posted by dirty_drew

Ok I got the tach signal wire installed and i need to know which wires to splice into for the power and the dimmer light.
I need to know which wire to splice into at the dimmer control switch.
I also need to know which wire to splice into at the radio. (Preferably when the ignition is on. I dont want a constant power source to drain the battery)
I have no diagrams so any info would be EXTREMELY helpful. Please only post if you have tried this before and KNOW it works.
Thanks.

Anyone?

[drmrman]

I just installed my tach thanks to this thread particularly the first page (from 2003 hahaha) Its a 2 5/8ths Sunpro tach.

EXTREMELY SIMPLE!

I have an aftermarket radio. Spliced the tach red wire to the radio red wire (ign. power)

Spliced the orange wire from the radio to the white wire on the tach (dimmer light power)

Tach green wire to the white (egg shell or off white #3 wire) on the grey side of the cluster wire bundle.

Tach black wire to a local ground.

Took me and a friend 15 mins.

[2000s105spd]

this made things SOOOO simple. thanks so much to the original writer of this thread for the info! worked just as you said.