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High Idle Mod question

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Old Jul 13, 2011 | 12:07 PM
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High Idle Mod question

Hey guys,

Got a 06 Ford F250, and i am going to attempt the high idle mod. I have read (and reread) the sticky on it, and I had a question:

I do not have the factory upfitter switches in my truck so I am going to use a switch from an auto store. I am enlisting my dad to help me (because he knows about wiring better than I) and I was telling him the process I read on the sticky. He asked me about a "ground wire" because he said in order to flip the circuit on and off the switch would have to be grounded.

Any truth to this...is there a ground wire with the BCP wire? Or do we need to run one?

Also does this mod eliminate the "wet stacking"? That is definitely what I am trying to avoid!

Thanks!
 
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Old Jul 13, 2011 | 01:01 PM
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As far as I know its just the hot wire. I had upfitter switches. The switch just acts as a break in the wire
 
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Old Jul 13, 2011 | 01:04 PM
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No ground needed. Just hook the 2 wires together and call it a day. Yes, it does prevent wet stacking.
 
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Old Jul 13, 2011 | 01:12 PM
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The switch I use is getting power directly from the red cable that runs to the fuse box, and is grounded to one of the 10mm bolts that holds the fuse box in place.
 
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Old Jul 13, 2011 | 02:11 PM
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If your switch has a bulb/led in it, you will need to ground that bulb/led so it will light up when you connect the circuit.
 
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Old Jul 13, 2011 | 04:44 PM
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Originally Posted by jkudera
As far as I know its just the hot wire. I had upfitter switches. The switch just acts as a break in the wire
Ok, so you dont actually hook the wire up to the switch, you just kind of hook it in the wire is what you are saying?

In other words, is the wire a hanging wire now that runs to nothing, or is it hooked up to something else and you just hook this wire in between? If that makes any sense, lol
 
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Old Jul 13, 2011 | 04:46 PM
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Originally Posted by fomoco60
No ground needed. Just hook the 2 wires together and call it a day. Yes, it does prevent wet stacking.
Which two wires are you speaking of? The two wires mentioned in the sticky, the BCM and the SCIC? Or is the BCM (which is the one I want to use) more than one wire that I connect together?
 
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Old Jul 13, 2011 | 05:01 PM
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U have to run a hot wire to your switch then a wire to the high idle wire under the dash
 
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Old Jul 13, 2011 | 05:15 PM
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Take the bcm wire to one side of the switch and a hot 12v wire to the other side.
 
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Old Jul 13, 2011 | 06:57 PM
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Originally Posted by Craig.Parks
If your switch has a bulb/led in it, you will need to ground that bulb/led so it will light up when you connect the circuit.


You'll only need a ground if you use a switch that has a light in it. This type of switch will have 3 (or even 4) connections. A simple switch will have just two leads on it, one to power and the other to the wire you want to turn on. You'll get it straight when you have the switch and the diagram for it in your hand to look at.
 
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Old Jul 13, 2011 | 07:10 PM
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Originally Posted by GeneLaw1
Ok, so you dont actually hook the wire up to the switch, you just kind of hook it in the wire is what you are saying?

In other words, is the wire a hanging wire now that runs to nothing, or is it hooked up to something else and you just hook this wire in between? If that makes any sense, lol
Correct, the wire is not connected to anything on the end. It's taped to a bunch of other wires that are like this as well. You only need a ground if the switch has a light on it.
 
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Old Jul 13, 2011 | 09:00 PM
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Originally Posted by fomoco60
Take the bcm wire to one side of the switch and a hot 12v wire to the other side.
Ok cool! Any tips on finding which wire is the "Hot wire"? Do I need some kind of tester or anything like that?
 
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Old Jul 13, 2011 | 09:09 PM
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Since you don't have the upfitter switches just find a fuse in the fuse panel that only has power with ignition. Radio fuse usually works good but use the fuse adapter that you can get from the auto parts store. It will have a bare wire on one end and the other end will plug into the fuse block.
 
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Old Jul 13, 2011 | 09:12 PM
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I know the 04's have a 12v wire already under the dash that you can use but I don't know about the 05+
 
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