Tacho wiring diagram plz!

[ABuSD]

Want to install my monster tacho, but am unsure of the wires, looked @ the Autometer site but they dont have it!

Problem is i bought the tacho off my bro in law and he had it prof. installed in his car, and doesnt have the wiring diagrams/codes.

So im after some help on the colours of the wires coming from the tacho!

Like what each colour represents!

theres four: red, white, green and brown

power, illumination, ground and revs?

but what colour does what!

Any help would b great!

Cheers

[R33Steve]

Dont quote but id take a guess at saying...

Brown = earth

Red = power

Green = illumination

White = revs

once again dont quote me this is just from experience.

S

[ABuSD]

cheers probably gonna get an auto elec to do it cos i need to wire it to the coils or sumfin, another mate of mine had the wiring diagram!!

Cheers

[nitemare5]

you dont need to wire it up to the coils, just tap into the rpm signal off the ecu. there are a few diagrams of the ecu layout on these forums; just do a search.

also, i think to correct steve i think green is for the rpm signal, and white is for the illumination. It is better to tap into your dashlight wire because it you can adjust the brightness of it with the switch.

[ABuSD]

got all the wires down pat! Nitemare when u say tap into the rpm signal, can i do that by getting the wire from the factory tacho behind the dash?

Cheers

[nitemare5]

yep you can, but it'd be easier to tap into the wire on the ecu as it's easier to get too, unless of course you already have the dash out.

[ABuSD]

Thanks bruv!!

[CNBLOW]

easiest way is to go to the apexi website and they have the ecu pinouts for all jap cars...find the diagram for your model and all the wires are there.....should take ya 10 mins to do

[CNBLOW]

red....ign

black....earth

white....illumination

green....tach signal

[ABuSD]

HiHi thanks, dun think im gonna put it in now! 'CNBLOW' u from St Albans area? Wif that tidy white 34 always near the st albans train station?

[jabtronic]

Want to install my monster tacho, but am unsure of the wires, looked @ the Autometer site but they dont have it!

Did you look through this page?

http://hp.autometer.com/instruction_downlo...achometers.html

I can't imagine the tacho wiring to be different throughout their model range anyway

[ABuSD]

thanks yeah i looked in the site but didnt find that!

Cheers

[rsx84]

anyone have problems with the signal to the tacho? i've wired it up correctly but get no responce from the ECU?? when i turn on the power the needle goes to 0rpm but when the engine is running the rpm sits at 3000rpm and just stays there???

[4drftn]

iv put tachos in many times, autometer being the easiest... best way to do it would be to take the cluster out and pull the plug out from behind the RPMs and then start the car and put the wires on the pins on the back of the plugs until you pick up the tacho signal, then splice or solder into wire behind the pin... thats what i did for my girlfriends lancer...

also if the signal doesnt read accurate check your earth wire, make sure its secure, a weak earth will make it inaccurate. better earth more accurate. test light will aid you