Wiring gauges question

zenboy99

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Madison, WI

Jan 21, 2006

#1

• Jan 21, 2006

• #1

I have an electric water temp and oil pressure gauge I'm wiring in. I've found a 12v ignition wire, can I hook both gauges up to that ignition wire or should each of them both have their own 12v ignition wire?

 

S/CBlack95GT

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Apr 6, 2003

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Jan 21, 2006

#2

• Jan 21, 2006

• #2

You can tie them both into there.

 

illwood

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Apr 3, 2004

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Worcester, MA

Jan 21, 2006

#3

• Jan 21, 2006

• #3

S/CBlack95GT said:

You can tie them both into there.

Click to expand...

You can also use the same wires for lighting.

 

94GTLaserRC

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Ernan Says "here it comes... dushbag"

Jan 21, 2006

#4

• Jan 21, 2006

• #4

I used the wire that connects to the ashtray...since it's easy to find and it dims with the lights...And YES, you can tie them in, as stated.
RC

 

mytight95

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Dothan,Al

Jan 21, 2006

#5

• Jan 21, 2006

• #5

94GTLaserRC said:

I used the wire that connects to the ashtray...since it's easy to find and it dims with the lights...And YES, you can tie them in, as stated.
RC

Click to expand...

I was wondering how i was gonna tie my gauges in to where they would dim with the lights like the gauge do. I guess you just solved that for me.... I already ordered the green LED bulbs from autometer to try and match the gauges

sorry for the intrusion

 

zenboy99

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Jan 21, 2006

#6

• Jan 21, 2006

• #6

Awesome, thanks guys for your responses. I'm an idiot with electrical stuff. Wasn't sure if my gauge would be half accurate it it shared a power source.

 

HISSIN50

"How long does it take to get help in here?

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Jan 21, 2006

#7

• Jan 21, 2006

• #7

zenboy99 said:

Awesome, thanks guys for your responses. I'm an idiot with electrical stuff. Wasn't sure if my gauge would be half accurate it it shared a power source.

Click to expand...

You might be thinking of not having senders be shared. That is a no-no.

The entire car shares a power source.

Good luck!

 

CManT1914

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Jan 22, 2006

#8

• Jan 22, 2006

• #8

Chad, FWIW, I have my oil pressure and water temp gauges wired to the same power source, and ground. Of course they have their own sending wire though. Where are you mounting them? That would determine the easiest places to tap in for power, ground etc.

 

zenboy99

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Jan 22, 2006

#9

• Jan 22, 2006

• #9

CManT1914 said:

Chad, FWIW, I have my oil pressure and water temp gauges wired to the same power source, and ground. Of course they have their own sending wire though. Where are you mounting them? That would determine the easiest places to tap in for power, ground etc.

Click to expand...

I have an Autometer clock pod. From what I gather:

grey wire with red stripe is power to gauge lights (can dim gauge lights with dash light)

grey wire with purple stripe is a 12v power wire.

I've already got the wires running through the firewall, but I haven't tackled the oil pressure sending unit or the temp sending unit.

Now, could I run both gauge power wires, and both gauge lights on one 12v power source or is that too much for one wire?

 

fox racer

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Jan 22, 2006

#10

• Jan 22, 2006

• #10

I have O/P and water temp gauges in my A/C vent in my fox. I wired the 2 gauges together (ground, light, 12V) then I wired one gauge to the aftermarket radio harness (ground, light, 12V)that I chopped when i put in my pioneer. Then I ran 2 wires to the engine bay for each respective sending unit. I think I might reground the gauges tho, thats a lot of ground for one little radio wire IMHO.

 

CManT1914

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Jan 22, 2006

#11

• Jan 22, 2006

• #11

zenboy99 said:

Now, could I run both gauge power wires, and both gauge lights on one 12v power source or is that too much for one wire?

Click to expand...

That will be fine. I forgot to mention I have both my gauges run off the same light source too. So both gauges share a power, ground, and illumination wire, and it's no problem to run them this way.