[iokai]

Ok, this may sound like a stupid question, but here goes.....
So if after simply connecting the #4 upfitter switch to the BCP wire, and theafter the #4 switch is turned on, the system essentially monitors battery state and will automatically and variably adjust the idle to keep the battery voltage level up during peripheral equipment draw, why would any one need to purchase products like the "throttlecommander" or InPower's "Electronic Throttle Module"??

 

[RJ550]

It's not that you need to purchase it so much as the aftermarket people NEED to sell more gadgets. The Aftermarket throttle commanders and such were necessary on the 7.3's and now with full electronic throttle it's a DIY project. I believe any vehicle or heavy truck or equipment with an electronic throtle can do this. The accelerator pedal on electronicly controlled engines is nothing more than a potentiometer telling the PCM to increase RPM when depressed. By knowing the voltages and right pin on the PCM you can make the engine do most anything you want.

 

[CatTech1]

To answer everyones question about not having upfitter switches and doing this mod. What you would have to do is install a toggle switch somewhere on the dash. Then apply battery positive which can be found at a blunt cut wire behind the diagnostic connector. This wire is hot in the run position and the color is white/Lt. blue. This will tie to one side of your switch. To the other side of the switch you would apply to the PTO otput to raise the engine speed to 1200 rpm stable. Or tie it to the Battery charge wire to have the engine speed vary between 1200 and 2400 dependent on battery voltage. The wire colors are: orange for the PTO enable and Purple/Lt.green for the Batt. Charge enable. To change the idle speed while using the PTO mode you would connect a 10 turn 1/4 watt 45K ohm pot to: PTO V ref which is a orange/red wire and the other side of the pot to PTO rpm which is orange/yellow wire. Jump the third connector to one of the other terminals on the pot so that the resistance falls as the pot is turned clockwise. I have not tried this to see if it is true but this is how the chart list the resistance on the link below. When the pot is at 43k you will be at 1200 rpm and as you decrease the resistance the speed will raise to 2400 rpm. If there is anything that does not seem right about this please post. I am going to try it tonight. Please refer to the link below for further clarification. Thanks for the good stuff guys.

https://www.fleet.ford.com/truckbbas/non-html/Q108.pdf

 

[CatTech1]

To throw some things out there about wet stacking. I have a 2004 f-350 service truck for work. When i am on a job site in the winter it will not be uncommon for me to let my truck idle at base speed for 4 or 5 hours. The extent of the wet stacking would be a sizable cloud of white smoke when you leave the site and put the truck under load. It will smoke for about a 1/2 mile or so. The white smoke is the unburnt fuel in the exhaust system. We have a truck that had a PTO on it and idles to 1200 rpm for the compressor and the crane. This truck idling high for a few hours will still blow some white smoke when you leave. I think that really there isn't much of a difference with the idle elevated. It deff. keeps the truck warmer. I have inspected the exhaust manifold for any signs of fuel or goop dripping at the end of the day and it seems fine. I have seen people set up exhaust brakes to close at idle to force the engine to build higher exhaust gas temps to prevent wet stacking. We have a few cat C-9's in the bigger trucks that they do this to and it seems to work alot better. I think the brake is only closed part of the way. Well end of the story i have 165,000 miles on my truck and it has idled for extended times. The engine still runs great and has not needed any major service. I hope that may clear up any issues. please post to add or coment on this. Thanks guys

 

[Machine]

Thank you for this. Took about 30 minutes to do.

 

[bmiller1]

I just want to chime in here and say THANKS. I don't think this could get much easier.

 

[HAWSIE1]

I am not a big safety first guy but It should probably be added that the battery cables should be removed prior to doing this as I just got through with this install and there is a large 8-10 gauge positivly charged cable and lug just protruding to he outside edge of the fuse box. When you unscrew the 4 10mm head bolts and the fuse box is pulled out it can easily touch and ground itself on the metal areas of the dash. I know this because it happened to me and I started to unintentionally arc weld. Now I was listening to the radio and had the key on during this so maybe just the key off would do it but it was a pretty big spark. Great post though. It worked out great!

 

[johnfjensen]

Thanks for this post - one of the better, complete and more important ones for me.

I installed a an LED switch and used the BCP wire - works great!

/ubbthreads/images/graemlins/biggrin.gif

 

[incredilion]

Bear Hunter-
What is "cold weather strategy"? I live in North Idaho, it gets cold here. I was thinking I was going to install this in the morning, but I want my truck to warm up right.
Thanks-

 

[craigwe]

good post, i will try it soon..

 

[dawsondruesedow]

great write up and an excellent feature.

 

[Bear_Hunter]

[ QUOTE ]
Bear Hunter-
What is "cold weather strategy"? I live in North Idaho, it gets cold here. I was thinking I was going to install this in the morning, but I want my truck to warm up right.
Thanks-

[/ QUOTE ]

The cold weather strategy automatically bumps your rpms up to like 900. The high idle Mod does not affect this factory feature.

 

[craigwe]

i guess i wont be trying this out on my rig.. i own a 03.5 6.0L.. this mod is only for the 05 and up correct?? i have to buy the ford AIC module then huh??? the BCP seems like a really good feature to be able to use, guess i have a reason to buy a new truck..

 

[CANYONBIKER]

Thanks for all the info. It works great /ubbthreads/images/graemlins/laugh.gif

 

[sharps1877]

Works Great!!! /ubbthreads/images/graemlins/cool.gif

05/ 250SD/FX4

 

[Rww]

Can this be done on a 6-speed? It's a 06.

 

[lainsworth1]

I have a 2007 6.0 without the upfitter switchs. I would like to add the high idle but I am a little confused. I have a 2004 that I have modified by putting a switch between the white/Lt blue wire located near the OBD II connector (12 volt with ING on) and the Lt blue/yellow wire near the e-brake. No Lt blue/yellow wire on the 2007. I connected 12 volts to the solid orange wire, like the article said, on the 2007 - idle did not increase. HELP

Leonard

 

[lainsworth1]

GOT IT Missed the part about the e-brake being set. Did not have to do this on the 2004.

Leonard

 

[Groundhawg]

[ QUOTE ]
Can this be done on a 6-speed? It's a 06.

[/ QUOTE ]

Yes...I finally got around to doing mine today. I used BCP method..uses the purple with green tracer wire, it's wrapped to the harness directly above the e-brake.

 

[tmcmahon]

Went with the PTO option...works like a charm and brother was right on the tight space...I'm 6'5" 330 Lbs and hands like a Grizzly....tha part was pretty tricky /ubbthreads/images/graemlins/laugh.gif /ubbthreads/images/graemlins/laugh.gif /ubbthreads/images/graemlins/cool.gif

Thanks to the author for the instructions!