General Aftermarket Gauge install wiring

[trufanatic]

Using add a circuits from pepboys, they're $2.50 a piece. Most run prosport gauges which match the factory cluster, so to get those properly going WITHOUT any cutting or splicing please use the following:

***UTILIZING YOUR CAR'S MANUAL*** locate the fuse box layout.
**fuse box is located behind your glove compartment**

(physical fuse) 'CIGAR' - will be used for the red wire located at the back of your gauge.

(physical fuse) 'IG SIG' - will be used for the white wire, used for white daytime illumination

(physical fuse) 'Tail L' - will be used for the amber wire, used for amber/red nightime illumination.

NOTES:

Best ground source and the only one that should be used is located in the driver's and passenger side kick panels.

In the add a circuit package, there is a fuse marked 'E'. This is a straight-thru fuse, use these on all your add a circuits in conjunction with the original fuse who's spot you plugging into.

With a small wire spool from radio shack, physical labor shouldnt take you anymore than an hour flat if not less. if it does


ENJOY!

dont know if this was locked but those of us with turbo timers can also use the harness for ignition and constant, then i caught the dimmer for light. hope this helps people i read it on the dsm forum and it worked great for me.

[nighthawk358]

I just installed my Prosport Electrical Boost Gauge and the Automatic headlight sensor stopped working and I dont know why..Its in auto and its at night and the headlights dont turn on. I used the Add a circuits and used Ig Sig for Orange and Red (did not use the white). Tomorrow Im going to check everything again and Im going to plug the Red in a Constant. Can anyone tell me what went wrong?

[nighthawk358]

Fixed the problem...Stupid Fuse lol

[subparpunk03]

So just an FYI for anyone else who follows this install:

the CIGAR fuse is not a constant 12v... i.e. no power when battery unplugged, so if your gauges aren't keeping your peaks after you turn off the car, or are beeping at you everytime you turn the car off and on again, you need to switch to a constant 12V source.

What I did was use the fuse for the double locking system... its the same size as the CIGAR fuse so all I had to do was swap my add a circuit into another location.

If you look in your owners manual, on page 8-57 they have the fuse diagram, the one I used for constant 12v is #37 D/LOCK 2

If that doesn't work, try using the one for OBD.

[retrobmx63]

I'm not great with electrical know-how. So here's a noob question.

The add-a-circuits say they're only good for circuits that are 10 amps max.

The Speed3 cigarette lighter fuse is rated at 15 amps.

Can you explain why this is ok?

[subparpunk03]

The ones I used were from autozone and they didn't have anything that said they were rated for only a certain amount.

I've been running these gauges setup like this for a while now and so far, no problems.

[wisniaPl]

physical fuse) 'IG SIG" what fuse number is that i can find it in

[CMESCOOT]

has anyone installed a tach or shift light? I need to find the wires to tap into to get the signal. I know there is a genius in here somewhere that knows. Getting some new goodies this week in the mail and need guidance.

[Haltech]

if you look at some of the posted PDFs in the specs area, you can tap the tach signal from the ecu harness or off one coil's negative side, than switch your shiftlight/tach to 1 cylinder mode.

[CMESCOOT]

Haltech for president!

[CMESCOOT]

Next quiz for ya:
Where does the sender for an egt gauge need to be? I've searched for a "how to" for this as well with no luck.
NOTE: the winner gets....hell, all I've got to offer is a thanks and maybe some rep.

[cld12pk2go]

Damn, I wish I had known about the "add a circuit's" before!

Those look sweet!

[Blitzkrieg]

sweet, now i need to pic up some add a circuits.

[bergj1986]

Originally Posted by subparpunk03 So just an FYI for anyone else who follows this install: the CIGAR fuse is not a constant 12v... i.e. no power when battery unplugged, so if your gauges aren't keeping your peaks after you turn off the car, or are beeping at you everytime you turn the car off and on again, you need to switch to a constant 12V source. What I did was use the fuse for the double locking system... its the same size as the CIGAR fuse so all I had to do was swap my add a circuit into another location. If you look in your owners manual, on page 8-57 they have the fuse diagram, the one I used for constant 12v is #37 D/LOCK 2 If that doesn't work, try using the one for OBD.

If you have the power for the gauge tapped into a constant 12V source, won't the gauge stay on after you shut the car off? I ordered a Prosport Premium Boost Gauge w/ Peak function, that's why I'm asking.

[SilverDemon]

I have the ProSport Premium gauges as well. The 12v constant is just for the memory, peak and warning only. The switched ignition source is the one that will turn the gauges off and on.

[808mazdaspeed3]

Originally Posted by CMESCOOT Next quiz for ya: Where does the sender for an egt gauge need to be? I've searched for a "how to" for this as well with no luck. NOTE: the winner gets....hell, all I've got to offer is a thanks and maybe some rep.

Did you get your answer yet?

It really depends on if you're going to be using an aftermarket header (read: exhaust manifold) or the stock exhaust manifold. The EGT gauge probe should be drilled, tapped into your stock manifold. If you're buying an aftermarket header there should be one installed on it. If not you'll need to drill into the header and have a bung welded on the cylinder port you want to take your readings from.

[locorasta]

Would this work with auto meter cobalt gauges??

[flyrevs2]

should work with ANY 12vdc gauge !
The volts don't know or care about brand name.

OP Thanks for posting this - awsome.

[locorasta]

Thanks for the quick answer btw why is the air/fuel ratio gauge reading kind of lazy?? it might need more power source or more ground?

[Sacrilicious]

Originally Posted by locorasta Thanks for the quick answer btw why is the air/fuel ratio gauge reading kind of lazy?? it might need more power source or more ground?

what do you mean by "reading kind of lazy"?

[locorasta]

It takes a long time to read from red to green and when it is "hot" or working normally it takes a couple of seconds get the reading when I press the gas sometimes it would not read anything at all if like the car is off and suddenly it works again

[808mazdaspeed3]

the sensor needs to warm up.

[locorasta]

i understand but after warming up, it reads funny i don't know if is the gauge or is the mixture that is different, because i had a SE-R before and I had the gauge installed and it used to ready different, can it be because it is different in someway? I want to have the gauges on right and they are making me angry every time I work with them and I don't want to do nothing stupid

[808mazdaspeed3]

which wire did you tap into?

[locorasta]

I ended up running the wire to the fuse box in the front n they are working 100% now

[jax ms3gt]

haven't been to pep boys yet but napa and advance don't carry addafuse..autozone did but they had three different ones and i don't know the difference off the top of my head. anyways subbing to use this weekend for my boost, oil press., oil temp and egt gauges.

[GTISPEED3]

I'm having a problem with the wiring. I have all the wires connected to the fuse box with add a fuse and have them connected to where the OP says to connect them. This is a prosport boost gauge. When I have the key turned forward one click without starting the car the gauge will work like it should (white during day and amber with headlights turned on). Problem is when I start the car the gauge stays white whether the lights are on or not. Any ideas?

[moonyu69]

Originally Posted by bergj1986 If you have the power for the gauge tapped into a constant 12V source, won't the gauge stay on after you shut the car off? I ordered a Prosport Premium Boost Gauge w/ Peak function, that's why I'm asking.

I need an answer for this also. I have tried the door locks, as well as the horn, but my gauge stays on even without a key in the ignition. I didn't use the tap a circut things. Could that be the problem?

[wankular]

Don't wire the power (red?) and illumination (orange or white?) to the same 12v source. The gauge has to have enough constant power to retain the peak/warning settings otherwise they'll beep every time you start the car. So do the red to the constant 12v and the illumination to Ignition so it lights up when you start it.

[G Sp33dy]

Great write up! thanks!

[Justin Johnson]

d

Great write up

[Meder]

Anyone have the layout of the fuse box for gen 1s? I lost my manual and need a reference.

[07mspeed3red]

anyone live near castle shannon n would want to install my boost gauge i tired it once cant seem to get the vacuum line through the fire wall willing to pay or even have a brand new aem wide band not using please let me know 412 477 7590 sean

[zpele]

Originally Posted by 07mspeed3red anyone live near castle shannon n would want to install my boost gauge i tired it once cant seem to get the vacuum line through the fire wall willing to pay or even have a brand new aem wide band not using please let me know 412 477 7590 sean

Keep on tryin or drill a hole. You really want to pay someone to poke a wire through a hole?

[xchrislee]

If you can pay someone to install your gauge, you can certainly donate

[TWOptSL0W]

probably not a good idea to drop your phone number.... and xchrislee dont fucking ask someone to donate when you only have 11 posts. hes asking for help no reason to beg for money

[Squid]

Big-time necropost, but I could really use some help here..

Got a Prosport Premium Peak-gauge and have it hooked up like this with add-a-circuits:
12v red wire - D/LOCK 2-fuse
Amber wire - TAIL L-fuse
White wire - Unhooked atm, planning on using amber at both day/night.
Black wire at a good grounding spot in drivers kick panel.

My main problem here is: Gauge wont hold memory once I turn of the car, just as it does NOT have a constant power source. We even tried plugging it directly to the battery but it still wont hold peak/memory.

Am I missing something here or is it actually the gauge that is broken?

[locorasta]

Originally Posted by Squid Big-time necropost, but I could really use some help here.. Got a Prosport Premium Peak-gauge and have it hooked up like this with add-a-circuits: 12v red wire - D/LOCK 2-fuse Amber wire - TAIL L-fuse White wire - Unhooked atm, planning on using amber at both day/night. Black wire at a good grounding spot in drivers kick panel. My main problem here is: Gauge wont hold memory once I turn of the car, just as it does NOT have a constant power source. We even tried plugging it directly to the battery but it still wont hold peak/memory. Am I missing something here or is it actually the gauge that is broken?

I ran my 12V to the front fuse box with addafuse and the amber cable ran it to the glove compartment light and tapped the cable there. Don't know if that would help but mine are connected like that and they work 100%. Hope you get your gauge to work soon, good luck brother.