tachometer install

[drew&dixon1718]

i recently bought a sunpro universal tach for my 240 and im unsure how to install it properly due to the fact the 'universal' aspect doesnt include my 240sx. any advice? im just unsure were to attach the light wire so the tach lights up

[Hoffman5982]

I may be wrong, but wouldn't the light wire just wire directly to a 12v source?

[placham]

What model of tach is this, so u just need the illumination figured out?
Tach should have power,ground, signal, and illumination.

Are these the colors you have and their functions, correct.
Black-chassis ground
Red-battery 12v
Green-ignition/distributor signal (-)
White-illuminate dimmer side of circuit 12v


If so, you can do this 2 ways, have tach illuminate all the time by tapping into ignition switch whenever you put your ignition switch in "ON" position it will illuminate and stay on till you turn off ignition.
Or tap into something like ashtray or head unit(radio)/hazard switch. Its ether R/Y (red/yellow) or R/L (red/blue), but Im not sure without testing. Looking at the wiring diagram seems like R/L is the wire you want, because its the only one going to ashtray and theres chassis ground.

But test first before you do any cutting or splicing.

*******key has to be in ON position and parking lights must be ON for those 2 wires to work.*************

Let me know how it goes.

[badbob2121]

Is there something wrong with the factory tachometer? I feel that this is the most important question

[placham]

Is there something wrong with the factory tachometer? I feel that this is the most important question

I was thinking same thing, unless its a swap or stock broke. duno

[drew&dixon1718]

nothing is wrong with the stock tach we just swappin them out. its a project car for me and a friend. and its pretty beat up. i dont suppose yall can guide anywhere i can get a new hatch? the previous owners wife got behind the wheel and got rear ended and the hatch dont close anymore.

[badbob2121]

I would go to a call a local junkyard and look for a 240sx/hatch

and i would not install a huge ugly tach, unless you are building a custom cluster.

Done be a hipster, people will laugh at you

[drew&dixon1718]

we are makin the custom cluster

[badbob2121]

Post some pictures up

[drew&dixon1718]

i will when im able rite now the car is a mess of wires and parts cuz the previous owner wasnt easy on it and theres a lot of work to be done but as soon as its road ready ill have pics up that day