Tach Hookup
08-21-2004, 12:48 PM
#1
1.0 BAR
Thread Starter
Join Date: Jan 2003
Posts: 469
Tach Hookup
I have a 91 CRX SI and I am looking for a write up for installing an autometer tach. HELP!!!!
Green Wire- got no clue
Black Wire-Assuming is ground
White Wire- got no clue
Red Wire- Assuming goes to a power source
Green Wire- got no clue
Black Wire-Assuming is ground
White Wire- got no clue
Red Wire- Assuming goes to a power source
08-21-2004, 01:29 PM
#2
3.0 BAR
Join Date: Jan 2003
Posts: 7,082
Re:Tach Hookup
installing tachs on 88-91 civics/crxs is some of the easiest ---- in the world, installing tachs on other cars sucks.
green wire: take off your gauge cluster cover. look at the wires that go into the back of the gauge cluster, if you're sitting in the driver's seat and looking at it, the plug to the left will have a solid blue wire, that's the one you splice into for your green wire.
black wire: ground, just ground it somewhere, on the wall next to the pedal area there's already a grounding bolt with a wire going to it, just loosen the bolt and stack the tach ground on top of the wire that's already there then tighten the bolt
red wire: take off your fuse cover, there should be some little male spade connectors above the fuses with numbers next to them, just hook up the female spade connector from your red wire (if it has one, if not just go buy one) to one of those male spade connectors, I think I'm running mine off of #1 or #3
white wire: I'm not exactly sure how it is on the 90+ gauge clusters, but wherever the adjuster thing is for the brightness of your gauge lights is pull that thing out. there should be 3 wires coming out. I don't remember if it's the left or the right you use, but only one will work, so just ground the tach, strip a little off one of the wires and hold the white wire to it with your lights on, make sure that the light adjuster is plugged in, and if both your tach and the gauge lights come on you found the right wire, if only one or the other comes on you found the wrong wire and the good news is there's only one wire left to try.
once you're done I hope you routed all your wires the way you wanted to or else you get to disconnect everything so you can run your wires right.
green wire: take off your gauge cluster cover. look at the wires that go into the back of the gauge cluster, if you're sitting in the driver's seat and looking at it, the plug to the left will have a solid blue wire, that's the one you splice into for your green wire.
black wire: ground, just ground it somewhere, on the wall next to the pedal area there's already a grounding bolt with a wire going to it, just loosen the bolt and stack the tach ground on top of the wire that's already there then tighten the bolt
red wire: take off your fuse cover, there should be some little male spade connectors above the fuses with numbers next to them, just hook up the female spade connector from your red wire (if it has one, if not just go buy one) to one of those male spade connectors, I think I'm running mine off of #1 or #3
white wire: I'm not exactly sure how it is on the 90+ gauge clusters, but wherever the adjuster thing is for the brightness of your gauge lights is pull that thing out. there should be 3 wires coming out. I don't remember if it's the left or the right you use, but only one will work, so just ground the tach, strip a little off one of the wires and hold the white wire to it with your lights on, make sure that the light adjuster is plugged in, and if both your tach and the gauge lights come on you found the right wire, if only one or the other comes on you found the wrong wire and the good news is there's only one wire left to try.
once you're done I hope you routed all your wires the way you wanted to or else you get to disconnect everything so you can run your wires right.
08-21-2004, 03:17 PM
#4
3.0 BAR
Join Date: Jan 2004
Posts: 2,238
Re:Tach Hookup
white is a 12v power sourse, back: ground, red power, green is to the blue wire on you distributor, there are two plugs one has 7 the other has 2 wires on them. the blue wire you want is on the plug with 2 wires. very simple takes about 10 minutes.
08-21-2004, 10:26 PM
#7
1.5 BAR
Join Date: Jul 2004
Posts: 1,437
Re:Tach Hookup
ok ---- hooking it up to the dash and outside the dizzy..
hookup the green wire to the neg side of the coil. it will give you THE BEST tach reading that you can get.
as far as the red/white i hooked them both up to the cig lighter becuase it comes on with accessories and i dont need to go up under the dash.
nathan
hookup the green wire to the neg side of the coil. it will give you THE BEST tach reading that you can get.
as far as the red/white i hooked them both up to the cig lighter becuase it comes on with accessories and i dont need to go up under the dash.
nathan
08-22-2004, 01:29 AM
#9
1.5 BAR
Join Date: Apr 2004
Posts: 728
Re:Tach Hookup
Originally Posted by crx2fast
this is where i have mine. its probly the best spot for it. you can see it perfect, and its a nice snug spot 
but you can put your shift light where ever youd like.... i also have a 91 si
but you can put your shift light where ever youd like.... i also have a 91 si
08-22-2004, 01:57 AM
#10
1.5 BAR
Join Date: Jul 2004
Posts: 1,437
Re:Tach Hookup
eh...
don't leav eit where it can get jacked...
park in the garage and itthe rest is what the alarm is going to be for.
lol right now i dont have door handles = no locks = keep windows down
only drive whne it is no rain for the next day
don't leav eit where it can get jacked...
park in the garage and itthe rest is what the alarm is going to be for.
lol right now i dont have door handles = no locks = keep windows down
only drive whne it is no rain for the next day
