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Winter is coming - Need a high idle kit?


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Old 08-23-2011, 04:20 PM   #1 (permalink)
 
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Default Winter is coming - Need a high idle kit?
For those of you that live in the frozen north you'll want to consider building a high idle kit.

What Is It?

The Cummins ECM has high idle software already programmed in the ECM and Dodge disables it before sale. The high idle software will aid in warming up your truck in the bitter cold and reduces the risk of bending push rods and valve damage.

How do I get it?

There is 2 ways of getting the high idle software. One is using a Smarty programmer and the programmer will enable the software permanently for you even if you borrow a friends. Two... Is to go to a Dodge Dealer and get the flash done to enable it.
2nd Generation Dodge Cummins - TSB 18-019-01 - Cold Idle Engine Warming

So how does it work?

Well typically the flash will automatically start the high idle software and stop it under set temperatures. So 6 cylinder high idle is typically starts at 32*F IAT temp and 3 cylinder starts at 15*F IAT temp. But remember the grid heaters are running too so the temp outside has to be even colder.

So what the mod about?

Well my mod allows you to selectively select what mode of high idle when you want it. Summer day or cold winter morning without waiting for the conditions to be just right... Basically just 3 toggle switch and I'll explain how to use it.

Here is the wiring diagram...



The plugs can be purchased at Casper's Electronics.
CASPER'S ELECTRONICS - Quality Automotive Parts and Accessories - Specializing in automotive interconnect and wiring systems

Then the toggle switches and resistors can be bought at Radio Shack. (No lighted switch allowed!)

High Idle Fooler Operation

Cold Engine Start (Coolant <140F - Outside Temp > 32*F)

Turn on the IAT fooler and select normal high idle. Now start your engine. With in about 2 minutes the high idle should start. Once the high idle starts turn off the IAT fooler and allow the ECM to monitor the IAT temperatures. As the engine warms up to 170F it will cancel on its own and idle normally from that point on.

Cold Engine Start (Coolant <140F - Outside Temp < 32*F)

Turn on the IAT fooler and select 3 cylinder high idle. Now start your engine. With in about 2 minutes the high idle should start once it get to 1,200 PRM's the 3 cylinder mode with begin. Once the high idle starts turn off the IAT fooler and allow the ECM to monitor the IAT temperatures. As the engine warms up to 170F it will cancel on its own and idle normally from that point on.

Warm Engine Start (Coolant 140F-170F)

You can start the high software with a warm engine. At this point you need to use both the ECT fooler and IAT fooler. Select the proper high idle mode for your weather conditions as in cold start procedure. Once the high idle starts turn off the IAT & ECT foolers and allow the ECM to monitor both ECT & IAT temperatures. As the engine warms up to 170F it will cancel on its own and idle normally from that point on.

Forced High Idle

Turn on both ECT fooler and IAT fooler have it set for normal high idle. Start the engine and allow the high idle to start. Once the high idle starts turn off the IAT fooler but leave the ECT fooler on. This will allow a forced high idle that never ends. To cancel it just turn off the ECT fooler and it will cancel.

Video of Operation...
http://www.youtube.com/watch?v=il7iJCKfmaE

Prototype Video (Designing the High idle)
http://www.youtube.com/watch?v=P0Ah9nK3ahc

http://www.youtube.com/watch?v=umXz_xGxank


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Last edited by Mopar1973Man; 08-23-2011 at 04:43 PM.
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Old 08-23-2011, 04:24 PM   #2 (permalink)
 
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Great write up .

Question ? My PV2 has the high idle adjustment on it ... is it that simple ?

Here in Illinois we can see 0 degree temps nothing much lower but windchill sometimes is -10

My truck now idle's at 1k
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Old 08-23-2011, 04:25 PM   #3 (permalink)
 
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Originally Posted by ramhunter9 View Post
Great write up .

Question ? My PV2 has the high idle adjustment on it ... is it that simple ?
Still working the thread... Long... ANd your PV2 doesn't have 3 cylinder...

I think I got it all there for now...


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Old 08-27-2011, 11:54 AM   #4 (permalink)
 
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I'm surprise there is no other comments to this... Wow! This is one of my popular mods... Even better yet no other Cummins engine can do it other than 98.5 to 2002... Ve, Ppump and CR can't do it...


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Old 08-28-2011, 01:47 PM   #5 (permalink)
 
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I knew the ve and Ppump couldnt do it but the CR cant either? For thr few days out of the year that I would need it in Texas I have the high idle feature enabled on my XZT+

-Jordan-


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Old 08-28-2011, 02:04 PM   #6 (permalink)
 
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Originally Posted by MarbleCrusher View Post
I knew the ve and Ppump couldnt do it but the CR cant either? For thr few days out of the year that I would need it in Texas I have the high idle feature enabled on my XZT+

-Jordan-
Ummm... My winter temps might be well... Cold...



This years temp history McCall, ID


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Old 08-28-2011, 02:14 PM   #7 (permalink)
 
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Well the record for the lowest recorded temp ever in my area of Texas is -8deg ha ha ha

-Jordan-


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Old 09-12-2011, 06:23 PM   #8 (permalink)
 
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Our morning are getting cooler. Right now we start the morning off at 50-55*F... By October the morning low will be 30-35*F...

Now the stock CR truck may or may not be able to set the cruise control and 6 cylinder high idle. But CR don't have any way of doing 3 cylinder.

Funny part is its firing every other cylinder which happens to be 4,5,6 and 1,2,3 is dead... Red is fired cylinder white are dead.

1 5 3 6 2 4

What really bad is if your pyrometer install in the 1,2,3 prot it won't move on 3 cylinder high idle. I've had people wig out over this one...


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Old 12-04-2012, 10:22 AM   #9 (permalink)
 
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I built my own mechanical high idle for my 01 cummins. Uses come custom brackets and a specific adjustable solenoid. Simple, non-intrusive, can never interfere with normal throttle operation, and a one wire hook up.
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Old 12-04-2012, 07:20 PM   #10 (permalink)
 
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Originally Posted by oilfieldtrash83 View Post
I built my own mechanical high idle for my 01 cummins. Uses come custom brackets and a specific adjustable solenoid. Simple, non-intrusive, can never interfere with normal throttle operation, and a one wire hook up.
But remember that not safe.

The flash high idle is completely safe because it can cancel if...

Speed above 0 MPH
Coolant temp above 170*F
Brake Pedal Pressed
Transmission put in gear (auto)
Throttle pedal pressed

With yours the throttle remains high and could be dangerous... There is no way to self-cancel...


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3 cylinder high idle, 6 cylinder high idle, high idle


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