Just a basic high idle mod I was going to connect it to a switch that has three different places to put a wire to. Not sure if I only need to hook up one wire to it or two different wires. I found the little black box about 2" above the obd port and it had the wire I was looking for it runs way up in the wrapping with a bunch of other wires and I'm guessing its all going to the PCM. I'm thinking I need to take it out of hat little black box and connect I to my switch. Do you think this would be a good assumption. Thanks again

 

Finding the right wire (03-04)-
https://www.ford-trucks.com/forums/1...r-dummies.html

A couple of pics for 03-04 models-
https://www.ford-trucks.com/forums/9...-idle-mod.html

Body manual info '03-
https://www.fleet.ford.com/truckbbas...bb_pdf/199.pdf

 

SO doe little blue light show its On??

Or does Blue light hook to Dash lights and go on/off with those Dash Lights??

 

The blue light will just show that it's on. About to check out the links right now.

 

Awesome info now I guess the only questions I have are both these wires getting hooked to my switch and also do these wires connect to anything else I need to take it out of or do they come to an end at some point in the cluster of wires. Thank you again

 

Yes, both wires attach to switch.
If the switch has 1 wire coming off it (when you take it out of the package) and two screws to attach the wires from the truck, the wire will be the ground for the light inside the switch. You'll have to attach it to a screw or ground wire for the light to come on. If you don't ground it, the switch will still work, it just won't light up.

If it has two wires and two screws the black wire will be attached to ground as above and the colored wire should be attached to the the truck wire that is being switched (not the wire that is supplying power to the switch) so the light will go on with the switch on.

If it has 3wires it's the same as example 1, 4wires is like the second example. You have to check the package to figure out what color wire does what.

 

Thank you for the reply, that will help. One more question and I promise I'm done one this thread lol, but the wires I need from the truck will these wires be plugged into something on one end and no connection on the other end.

 

Nope. One wire in the truck is coming from the battery -through the ignition switch and what ever else, and supplies power to one side of the switch. When the switch is turned on, the power from that wire goes out the other wire which is already connected to the trucks PCM telling it to turn up the idle speed.

The wires are in the harness of the truck for this purpose and may have some heat shrink caps on the ends, when you find the right ones they won't be connected to anything.

 

Thank you I will get this done today and post back

 

Is it possible to use a three position rocker switch on a 2005 Excursion to have both high idle options? Just a thought, since I have no idea which high idle I want to do...

 

For anyone reading this thread later, here's some info on the high idle mod on an '03 truck with manual trans:

SVE Department Product Development Center
North American Truck MD-410
Ford Motor Company 20901 Oakwood Boulevard
Dearborn, MI 48121-2053
March 25, 2003
TO: The National Truck Equipment Association members and others using Circuit 322 to obtain
stationary elevated idle speed for 6.0L diesel engine.
RE: Ramp-rate and activation character of 1200-SEI Feature.
1200-SEI = 1200 rpm stationary elevated idle.
VEHICLES AFFECTED
Model year 2003-¼ F250/350/450/550 with 6.0L Diesel Engine
CONDITION-1
Ramp-rate from base engine idle (625 rpm) to 1200 rpm target is higher than prior 7.3L diesel engine.
This may be too rapid for smooth engagement of transmission-mounted PTO serving high-inertia PTO
system start-ups, typical of direct-drive air compressor installations.
ACTION-1
For final stage manufacturers completing vehicles with TorqShift automatic transmission, and high-inertia
start-up type PTO systems, Ford recommends holding completed vehicles for shipment to final customer
until the Powertrain Control Module (PCM) can be re-flashed with new strategy. The re-flash is
tentatively available through Ford dealers near April 4th, and will revert the PCM strategy back to the
same as prior 7.3L character (i.e. slower ramp rate).
CONDITION-2
The 1200-SEI Feature strategy is incompatible for manual transmission vehicles.
ACTION-2
Do not activate (apply 12 volts to) Circuit 322 (Light Blue / Yellow Trace) for manual transmission
vehicles. To obtain stationary elevated idle for transmission-mounted PTO or FEAD-mounted clutch
pumps use Ford Auxiliary Powertrain Control Module (APCM) or equivalent. The PCM re-flash noted
above will be available to customers with 6.0L diesel engine and manual transmission, and will deactivate
Circuit 322 and resultant 1200 SEI Feature.

 

Sure, should work fine. Better than two switches since you can't turn both on at the same time. (Not sure what would happen if you did)

 

I found the wires! Do they have any play in them should I try and pull down on them or cut back to get them to move further

 

I guess the question is how do I get the wire from the parking brake area over the the other wire near the obd port and hook the into my switch or am I totally missing something here. But I did find the wires

 

run a wire---solder or butt connectors.