alright i needz some help

my gauge clusters tach hasnt worked for a couple years so instead of fixing it or replacing it i just bought a small aftermarket tach. it has four wires coming out of it, black, red, white, and green. i need some install help please

black- says you can attach to a chassis ground or negative battery terminal, can the chassis ground basically be any clean piece of chassis like the door or something?

red- says attach to a +12v circuit at the fuse box, or you can splice into other wiring. is it the engine fuse box or the one inside the car? how do you attach it to the circuit?

white- wire to panel lights circuit at fuse box or splice into other wiring. again how do you attach to the circuit?

green- says attach to the negative side of the ignition coil or splice into a vehicle tach signal source. which is easier? and even more stupid, wheres the ignition coil (checked my owners manual but doesnt say)

thanks again. im horrible at wiring

 

Yeah I guess U could use door but U can find better ground under dash,under dash, pull out fuse box and splice into connector in back of another fuse or better use empty fuse space and make your own with wiring provided with tach kit and lastly the coil is thing attached to the spark plug wire that doesn't go to a spark plug. U Can Do IIIIt!!!!

 

http://www.chiltonlibrary.com/conten...san_600348.pdf

 

alright, more stupid questions

i got the green wire through the firewall, and bolted the ground wire to unpainted metal where the center console was. i cant figure out the coil part though where the green wire goes, is there a spark plug wire under "V6 3000", ECCS or whatever cover, or where it attaches to the red oil cover?

and with the white and red wire, do you attach them to a actual fuse or are the circuits those boxes next to the fuses?

 

wait do you mean splice into the 2 holes with a bit of metal showing on the back of the fuses? and one more stupid question, i took my subwoofer out but the power cable from my battery is just attached to my amp because i dont want to go through the trouble of removing the wiring, could i attach the red wire from the tach to the subwoofer power cable?

thanks again for the help, i should be able to take a crack at things again tomorrow after work

 

http://www.chiltonlibrary.com/conten...s/82616w59.pdf

 

Black - Ground anywhere that connects to the chassis, scrape any paint.

Red - Power to the tach, you should only need it when car is running. Connect to white and red, should be many places.

White - I'm guessing for tach Illumination, connect to any red/yellow wire running around the dash area.

Green - Tach signal, OEM tach gets a signal from the ECU, your aftermarket, universal tach takes the signal directly from the coil, connect to black/yellow at the ECU.

All off the top of the head so double check in the FSM.



See above reply black/yellow for tach signal. I see you figured out the white and red right though

Forget "back of fuses". I once bought a VE that had custom wiring at the fuse box, annoying as hell to undo. Run wires to the closest stock location you can, use "quick splices" if possible, they're spendy though and using them as a permanent connection can be suspect.

 

really?
rrrrrrrrrrreeeeaaaaaalllllllly?
fix the damn tach, right.

 

meh the rest of my cluster works besides the tach and i need to learn how to do wiring

alright, i'll take off some dash trim tonight and see if i can find some wires to top into

 

I imagine part of learning how to do wiring is the ability to trace down and diagnose failed components. Although, I doubt this is a "wiring issue" with your tach.......ugh.

As Ben said, fix the stupid thing right. If it is on the guage cluster side, I believe I've got an stock SE tach for it. But you need to figure it out instead of rigging something up.

Where's Charlie Brown when you need him!?

 

 

Give a man a wiring diagram and still does it wrong.....

 

one thing at a time lol. i'll fix my cluster, i think i have to replace one of those little cylinder things on the back of it. i'll find that thread on it and see what i need

even tapping into wires i need to learn, the only wiring experience i have was when i had a aquariums i had a ballast blow on a metal halide light and i bought a new ballast, cut harnesses and connected wires and im surprised that worked and i didnt burn the house down

 

alright i did some dash hunting, and i found a red and white wire going into the black box beside the fuse box under the dash. i can tap into that right?

 

Like I said man, don't mess with the fuse box, circuit breaker or anything, there's no reason to, and if you don't know what you're doing, you're taking a chance of causing problems with other circuits. There's a switched red/white within the dash harness, so clip onto that. Every wire you need to connect to are right there behind the cluster, except that black/yellow tach signal at the ECM.

 

so you mean connect the tach wires to the harnesses going to the cluster right? that sounds alot easier

so i think ive got it, connect the red tach wire to a red/white wire behind the cluster, and connect the white wire to a red/yellow wire behind the cluster. green wire connects to the black/yellow wire coming from the ECU and we're good

thanks again for the help

 

last thing I am saying is rice is what you do to your car, no matter how much it costs.

get an engine that will rev to 10k, and i will shut up. until then, you are just a stupid *** ricer.
don't come whining when you never get it figured out (this, or anything).

and you have the audacity to rag on "ghetto" rims?

 

dude its gonna be my track car, i just want to learn how to do this stuff myself. just like getting the turbo parts together and stuff, i need to learn how to do this stuff myself. i might even take the tach off after, but at least afterwards i know how to tap wires and where to do it and what to look for. ive already learned to not mess with the fuse box and circuits

 

No, the tach signal in the dash harness comes FROM the ECU and it's not yellow/black anyway. The yellow/black wire at the ECU goes TO the ECU, that's the one you want to connect to, comes from the coil resistor. +12, GND and illumination wires can all be found at the instrument harness, but you need to run a wire down to the ECU for the tach signal.

The tach signal from the ECU to the cluster will not work with your gauge. It will only work with the stock tachometer.

 

I checked. If you need....I do have a stock tach for an SE guage cluster.

 

I've never had any problems tapping into fuse box myself for anything after market or stock. Yes tapping into hareness/ECU wiring will work good, was just trying to answer his questions as he asked. My bad if my suggestions confused U, you can fduck your electrical system up if screw around with fuse block not knowing what your doing. Personally I like doing thyngs nnice and neat so it looks custom/factory. You should fix factory tach at same time but aftermarket tachs can be really tight if installed correctly and positioned in a good spot, like driver side dash to headboard inside of door frame like, that's what I would do. Hope everything works out 4 U.

 

thanks but im going to be making a junkyard run right away, i found a clean SE tach at the junkyard but it didnt have the ABS light on it so i didnt get it, and when i got home i searched and found out you can switch lights over

theres only GXE's at the local junkyard but when i get my suspension fixed i might make the 5 hour drive to the Nissan only junkyard and try to get a VE 5spd tranny, Z31 turbo parts, and a SE cluster all in one

im trying to sell the digital cluster i got a deal on, junkyard charges about $10 for each gauge thats in the cluster, but you cant see anything on a digital cluster unless its lit up so technically it was one gauge and i got it for $10