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-   -   power to gauge illumination problem (https://www.evolutionm.net/forums/evo-how-requests-questions-tips/300901-power-gauge-illumination-problem.html)

hokiruu Oct 11, 2007 08:57 AM

power to gauge illumination problem
 
Sorry I am an idiot, especially when it comes to wiring and electrical stuff.

I installed a mechanical boost gauge following the installation write ups on here but am having trouble getting power for illumination. I tapped the green/white wire to the cigarette lighter and grounded to metal under the dash and the gauge didn't light up.

I then tapped the green and white wire to the ashtray illumination instead (which is probably the same anyway?) and it still didn't light up.

Then I noticed that the lights to the ashtray and cigarette lighter no longer were lighting up and realized my dumb a$$ forgot to re-disconnect the battery when I switched the wire that i tapped.

The part that confuses me is that I used a meter and was getting voltage at both green and white wires after this, and all the way up to the light bulb socket in the gauge. I checked the fuses under the dash and the most appropriate one seems to be the cigarette lighter 20amp fuse, but it wasn't blown.

I am working on other things on the car so I can't start the car up, but that should not matter, right?

It seems I blew something and if so, what? A different fuse? Could I have somehow burned out the all 3 bulbs in the gauge, cig. and ashtray? A relay?

I'm stumped. Any ideas?

mievoIX Oct 11, 2007 09:01 AM

You could tap on the green/white wire on your dimmer switch, this would allow you to dim the gauge.

bhamEVOguy Oct 11, 2007 09:02 AM

^^ i dont think that the gauge will dim

well i'm tapped into the gauge cluster fuse and i have to turn on the lights to light up the gauge.but once its lit up, i can turn off the lights and the gauge will stay lit up.

hokiruu Oct 11, 2007 09:08 AM

Yes i want it wired so that the gauge comes on with my parking lights/head lights. If I remember correctly I had my Defi Link (which I sold while ago - see I told you I'm stupid!) tapped just the way I am trying to do it this time, so it *should* work.

Either way, now I need to find out why the cigarette and ashtray illumination won't light up anymore even though I'm reading voltage from them and the wires to the gauge.

bhamEVOguy Oct 11, 2007 09:11 AM

^^in that case, yea it could be ur bulbs like u said earlier. try changing 1 out for the ciggarete lighter. if it works then thats the problem.

hokiruu Oct 11, 2007 09:27 AM

That is not a bad idea. I am just skeptical about all 3 being burned out at once...

mievoIX Oct 11, 2007 11:05 AM


Originally Posted by bhamEVOguy (Post 4838996)
^^ i dont think that the gauge will dim

well i'm tapped into the gauge cluster fuse and i have to turn on the lights to light up the gauge.but once its lit up, i can turn off the lights and the gauge will stay lit up.

I have an Autometer and it goes dim with the cluster.

hokiruu Oct 17, 2007 09:34 AM

oh thanks, where did you tap yours?

hokiruu Oct 26, 2007 01:14 PM

Ok so I tried replacing the bulbs and that didn't work. I'm not sure what else it could be and how to proceed. Any ideas?


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