Electric gauge hook up power sorce
- Thread starter 61fuel
- Start date
440roadrunner
Well-Known Member
Not exactly. Unless you have replaced the ignition system with something which eliminates the ballast, hooking to the coil+ is NOT 12V. If you are running capacitive discharge (like MSD) coil + isn't 12V either
There are only two switched 12V sources:
The switched accessory feed comes from the ign switch, goes to the acc buss in the fuse box. If you tap into the acc, the gauges will have power in "run" as well as accessory. Not a big deal for many guys
But ignition, has only one. The "ignition run" (IGN 1) or dark blue, comes from the ign switch, feeds power to the cluster, and then branches off out through the bulkhead to feed ignition, regulator, and on 70/ later cars, the alternator field and other things
If you want that, I see no reason to "go out" into the engine bay to get to it. You can splice in where the dark blue comes off the IGN switch. One place you can access that is right near the switch, or on column lock cars, pull the trim under the column But
BEWARE
This is an UN fused circuit. It would be wise to put a small inline fuse in there
There are only two switched 12V sources:
The switched accessory feed comes from the ign switch, goes to the acc buss in the fuse box. If you tap into the acc, the gauges will have power in "run" as well as accessory. Not a big deal for many guys
But ignition, has only one. The "ignition run" (IGN 1) or dark blue, comes from the ign switch, feeds power to the cluster, and then branches off out through the bulkhead to feed ignition, regulator, and on 70/ later cars, the alternator field and other things
If you want that, I see no reason to "go out" into the engine bay to get to it. You can splice in where the dark blue comes off the IGN switch. One place you can access that is right near the switch, or on column lock cars, pull the trim under the column But
BEWARE
This is an UN fused circuit. It would be wise to put a small inline fuse in there
67 coronet
Well-Known Member
were are you mounting this guage that you would think to pull power from the coil?what type of guage is it?
67 coronet
Well-Known Member
no need for power with a mechanical one and more accurate.just get a wiring diagram and pull power fron the ignition switch area.if your not sure about which wire,then use a test light or volt meter to check.
61fuel
Active Member
can't figure why wiring harness is missing fuse in the ACC slot, no evidence of ever being there, no fuse holder. Did the orginal harness come that way?
Looks to be org.harness.
can fuse be added?
61fuel
Looks to be org.harness.
can fuse be added?
61fuel
67 coronet
Well-Known Member
if you can find the power wire just put in an inline fuse holder.easy fix for missing fuse.
bigmanjbmopar
Newb with a view
If you look on the back on your fuse box there will be extra connection points built in just crimp on a female connector on to a red wire and plug it on the spare male terminal for 12+ then run it to your gauge this way it is more like an original would be. It's called a tap off the fuse box and your not butchering up your wiring harness with a bunch of splices that do not belong there.
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