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Electrical Noob Needs Help...

  • Thread starter Thread starter rjstaaf
  • Start date Start date Aug 22, 2012
R

rjstaaf

Founding Member
May 31, 2002
1,310
2
39
Somewhere
Aug 22, 2012
#1
  • Aug 22, 2012
  • #1
Have a 2001 Mustang GT and I am working on installing a Dakota Digital Oil Pressure gauge.

Working on getting power to the gauge and let me say, I HATE WIRING!

I was hoping to not hack into the wiring harness, would rather use an add a circuit. The problem is the add a circuit is limited to 10 amps max.

I can't seem to find a circuit in the fuse panel that has the required 10 amp or less fuse and is switched rather than constantly powered.

Seems all of the circuits in the panel that have 10 amp and under fuses have constant power.

Could really use some help here...



Thanks
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Aug 22, 2012
#2
  • Aug 22, 2012
  • #2
How much power do you think you need? 10 amps is more than enough for a gauge.

If interested in getting a full copy of the wiring diagrams and service manual for your car, I maybe able to help. PM.

Here's the panel layout.

http://www.allfordmustangs.com/foru...r-swap-wont-fire-please-help.html#post2669271
 

trinity_gt

10 Year Member
Jan 31, 2003
3,125
81
99
Canada
Aug 22, 2012
#3
  • Aug 22, 2012
  • #3
I looked at a couple of Dakota gauges (you didn't say which you have.)

For example, the HLY-1031 requires just 150mA (0.15 amps).

The HLY-1032 takes even less: 100mA (0.1 amps).

Use an add-a-circuit with a 2A fuse and you'll be golden.
 

vertigasen

Active Member
Apr 28, 2004
366
18
29
Falcon, CO
Aug 22, 2012
#4
  • Aug 22, 2012
  • #4
hmm. I am running an add-a-circuit and powering 4 speedhut gauges and a Cyberdyne gauge. Boost, AFR, Fuel Press, and Oil Press and the Cyberdyne is a water temp. Not a single problem.
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
Aug 23, 2012
#5
  • Aug 23, 2012
  • #5
If you get too concerned about how much amperage you'll be drawing, add a relay and run the stuff you're planning to add off of that.
 
R

rjstaaf

Founding Member
May 31, 2002
1,310
2
39
Somewhere
Aug 26, 2012
#6
  • Aug 26, 2012
  • #6
Thanks for the input guys.

Upon further research and input from other forums as well as calling Cooper Bussmann tech support, I found that it is the new circuit that is limited to 10 amps because of the size of the wire pigtail.

I wound up putting the add a circuit in the circuit for the gauge cluster which is 15 amps and used a 5 amp fuse for the added circuit.

The install went smooth after that. I still have some loose ends to tie up like painting the steering column pod to match as well as trying to find the break in the wire for the factory oil pressure gauge which is why I installed this one. Neither is a high priority right now but I will eventually get to them...

Here is a link to the Dakota Digital gauge and sending unit I used...
http://www.dakotadigital.com/index....tegory_id=241/home_id=59/mode=prod/prd322.htm

Here is the installed gauge and the VDO sending unit that goes with it...



 
G

garmon32

New Member
Aug 30, 2012
1
0
1
Aug 30, 2012
#7
  • Aug 30, 2012
  • #7
I just go a air/fuel ratio gauge for my 2001 mustang. I have it all wired up for power but then realized that it has to be wired in to the O2 sensor but my stang has custom exhaust and whoever did it cut the wires to the O2 sensors. Is there any way I can wire just my gauge to the O2 sensor without having to run the O2 to the PCM or is that where the O2 gets the power from to operate?
 
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