Another '22

[AH64ID]

yeah, probably have to purchase a new surround and the LED lights. The real question is if there is a signal / wire there for the LED to connect to. I assume its a power wire connected to the unlock / interior light circuit and may not be present on the 19,20s.

It’s tied to the bed lights on my truck, so you could tap into that circuit.

 

[Timd32]

1st Regen today, time based, was at 23hr on the dash, I think I've heard it's every 24 hours. Which the dash turned quickly.

I noticed it said Auto something as I was pulling out of the driveway. So I took the long way on the highway.

Was done fairly quickly.

Do folks wait till it finishes if it starts during the end of a trip. I was still driving so was fine did not have to make that decision, but I was going to let it run till finished.

It was about 20 minutes / 21 miles drive.

Here are some screen shots. The first pic just happened to be me trying out the high idle in the driveway, that's a pretty cool feature.

Thats why the RPM are at 1500. That's as high as it went.

And this is where I wound up tonight after the drive home.

Overall used a little bit more fuel, during the process. It was on the cooler side today so was not sure how that would impact it with driving at highway speeds. There was none.

At 7/8 on the Def tank so far at 762 miles.

 

[AH64ID]

My first one kicked off at 23rs. The dash doesn’t scroll to the next total hour until the idle/driving hours are whole. So 5.9 idle and 18.9 driving would show 23 hours.

 

[Turbo Terry]

Ha ha I’ve been thru many regens at 12 k. At idle I can hear the idle increase a bit. Couple times it was happening when I pulled in the garage and turned it off. You could smell the burn Etc. Sulfur like hot etc . I keeping my def tank 3/4 or lower in the winter now. Def is $6.30 a gallon at the pump now

 

[AH64ID]

Ha ha I’ve been thru many regens at 12 k. At idle I can hear the idle increase a bit. Couple times it was happening when I pulled in the garage and turned it off. You could smell the burn Etc. Sulfur like hot etc . I keeping my def tank 3/4 or lower in the winter now. Def is $6.30 a gallon at the pump now

If the rpms are increasing at idle due to regen then your regens aren’t properly completing. The only time idle rpms increase for a regen is when a normal regen has failed enough times that the truck needs to regen at idle.

I’ve never seen it happen on my personal truck, even with lost of slow speed forest service road driving. I completed two standard regens while hunting this year, both were normal but took longer than normal due to low load and EGT’s.

 

[Turbo Terry]

Interesting. I’m using def about at the right rate I think. The fast idle was maybe very minor and only happened once or twice. No codes etc Exhaust is very clean as well

 

[Turbo Terry]

I think I might have shut the truck down a time or two while a regen was happening also

 

[AH64ID]

Interesting. I’m using def about at the right rate I think. The fast idle was maybe very minor and only happened once or twice. No codes etc Exhaust is very clean as well

DEF has nothing to do with regen or the DPF.

Fast idle will occur for other reasons too.

 

[Timd32]

Here is some crop/copy paste stuff......

To super over simplify it, will take a stab at it:
DOC/DPF = for Carbon Monoxide, unburned Hydrocarbons.

SCR /DEF = for NOx


Exhaust Overview

DIESEL PARTICULATE FILTER - DESCRIPTION

• Catalyst elements, working together to drastically reduce tailpipe emissions:

• The first component of the Aftertreatment System consists of two catalyst elements, working together to drastically reduce tailpipe emissions:

DIESEL OXIDATION CATALYST (DOC)

• Is a ceramic flow through substrate coated with a catalyst washcoat that is integral to the DOC
  
• Resides in the front half of the assembly.
• Treats engine exhaust gases by converting harmful carbon monoxide, unburned hydrocarbons and other compounds into water, carbon dioxide and heat.

DIESEL PARTICULATE FILTER

• Is a wall-pass ceramic filter substrate coated with a catalyst washcoat.
  
• Located just downstream of the DOC.
• Exhaust gases flow from the DOC into the catalyzed diesel particulate filter (DPF) which traps and accumulates particulate matter, and further treats the exhaust gases to reduce any remaining unburned hydrocarbons and other harmful compounds.
• The trapped particulate matter will be periodically removed from the DPF via a regeneration process controlled by the engine’s PCM.

OPERATION

• PCM will actively regenerate the DPF to burn off the soot.
• Residue remains inside the DPF in the form of non burnable ash. Ash comes from the oils and other materials that are trapped in the oils and are present in the soot.
• The catalyst contains a large number of parallel channels, which run in the axial direction and are separated by thin porous walls.
• The channels are alternatively open at one end, but plugged at the other.
• The exhaust gases flow through the walls and escape through the pores in the wall material.
• Particulates, however, are too large to escape and are trapped in the monolith walls.
• The PCM starts the regeneration of the DPF if the soot load exceeds a performance map value.
• The PCM determines the load condition of the DPF based upon the exhaust gas pressure upstream and downstream of the DOC/DPF.
• A pressure differential sensor provides the pressure input to the PCM.
• During the regeneration process, the PCM raises the temperature in the DOC/DPF to burn off the soot accumulated.
• Under normal operation, the engine does not produce enough heat to oxidize the soot inside the DOC/DPF. This process requires temperatures above 550 ºC (1,022 ºF).
• After regeneration, the PCM reads the actual pressure difference at the DOC/DPF and compares it with a reference value. From this comparison, the PCM determines the ash quantity inside the DOC/DPF.

SELECTIVE CATALYTIC REDUCTION (SCR) CATALYST -

DESCRIPTION

• Is a catalyst element made of low precious metals used in reducing nitrous oxide gases (NOx) to an element of nitrogen. By injecting a Diesel Exhaust Fluid (DEF) solution upstream of a catalyst.
• The DEF solution will vaporize and decompose to form ammonia and carbon dioxide.
• When the ammonia vapor is introduced to the NOx gas, it converts it to a harmless nitrogen and water by product.

DEF SYSTEM OPERATION

• The DEF system uses a Selective Catalytic Reduction (SCR). This is a technology that uses a urea based DEF and a catalytic converter to significantly reduce Oxides Of Nitrogen (NOx) emissions.
• Injects small quantities of DEF into the SCR where its vaporizes and decomposes to form ammonia and carbon dioxide.
• The DEF dosing control unit is used to control the operation and monitoring of the DEF system.
• The ammonia is the desired by-product which in conjunction to the SCR catalyst, converts the NOx to harmless nitrogen and water.
• The SCR system is equipped with two NOx sensors and modules that are used to monitor the efficiency of the SCR catalyst and DEF system.

NOx Sensor

• There are two NOx modules and sensors used in the DEF fluid system, upstream and downstream.
• Both operate similarly to a wide band O2 sensor.
• The pre NOx sensor (1/1) is mounted at the outlet of turbocharger elbow and measures incoming NOx gases.
• The post NOx sensor (1/2) is mounted at the rear outlet of SCR catalyst and measures outgoing NOx gases.
• The sensors are zirconium-based, multi-layer sensors with oxygen pumps.
• The NOx modules communicate the amount off NOx to the Powertrain Control Module (PCM) over the J1939 data link.
• The upstream module is located on the right frame rail and the sensor is at the front of the Diesel Particulate Filter (DPF).
• The upstream module and sensor are used by the PCM to monitor NOx entering the catalyst.
• By comparing the inlet sensor to the outlet sensor, SCR efficiency can be determined by the PCM.

 

[bcbender]

I quit worrying about the regen timing / gauge cause its always almost zero. It usually says zero and has never gone past 1/4 and is usually not showing anything?

maybe I should look into that (LOL)

 

[Timd32]

I quit worrying about the regen timing / gauge cause its always almost zero. It usually says zero and has never gone past 1/4 and is usually not showing anything?

Maybe I should look into that (LOL)

Could be for sure, put another 100 miles on it and still at zero.

Probably right not much to look at.

I was curious what the display says when in Automatic Regen, basically that message comes up and the gauge goes away till done, as most folks know.

There is that little symbol in the middle of the DPF gauge I wondered if that would change color or something, nope.

Still learning on these for sure. Would like to pick maybe one small thing every 2 months and figure out what it does. There is a lot going under the truck.

Figured out the high idle deal, little things like that, never had anything that did that, a friend actually asked last weekend at work if it had it, I said yep, it does and it works. I just never did it manually.

DOC/DPF/SCR/DEF, tomato, twomato.........

 

[AH64ID]

I quit worrying about the regen timing / gauge cause its always almost zero. It usually says zero and has never gone past 1/4 and is usually not showing anything?

maybe I should look into that (LOL)

Sounds like it’s working properly

 

[bcbender]

Yeah, I wish there was a symbol, or light, or some indicator that is was in REGEN, my tractor has one so I know to keep working or let it finish, truthfully unless I leave that page up, I have no idea when its doing it.

 

[Tuesdak]

Do folks wait till it finishes if it starts during the end of a trip. I was still driving so was fine did not have to make that decision, but I was going to let it run till finished.

They have worked very hard on this so you don't have to worry about it. Other than short tripping it or idling to death you have nothing to worry about. (Say out in the field, idling the engine all day/night, and sleeping in the truck. Yeah you need an extreme case to eventually have a problem.) It will simply start regen again if you stop when it's in regen.

You might notice regen going down a grade without the EB active. Normally the fuel would be off. Mine will fire all the cylinders every few seconds when it's in regen going down the grade. Clack clack clack Silence Clack clack clack....

The fast idle was maybe very minor and only happened once or twice.

Cold weather it have trip the high idle for warm up?

 

[Timd32]

They have worked very hard on this so you don't have to worry about it. Other than short tripping it or idling to death you have nothing to worry about. (Say out in the field, idling the engine all day/night, and sleeping in the truck. Yeah you need an extreme case to eventually have a problem.) It will simply start regen again if you stop when it's in regen.

You might notice regen going down a grade without the EB active. Normally the fuel would be off. Mine will fire all the cylinders every few seconds when it's in regen going down the grade. Clack clack clack Silence Clack clack clack....



Cold weather it have trip the high idle for warm up?

Yep put another 250 miles on and still at zero, so will put this on the back burner of.

Thanks for all the suggestions and feedback.

I was not sure how this was going to go with the new technology and the sort.

 

[JPM]

Nice ride.. Any trouble with the MEGA and towing? I have all gooseneck trailers and I will be looking at a MEGA cab this Friday, but not sure about my trailers..

Im thinking about ordering one as I dislike the sunroof I have, just cant seem to make the numbers meet.

What did you not like about the sunroof?

 

[bcbender]

What did you not like about the sunroof?

For one it impedes headroom,.. I barely fit under it as well as brings in alot of heat, I am thinking about having UV blocking ceramic tint put on it). The primary thing is I have NEVER owned a car with a sunroof that did not leak.. they all do, its just a matter of time. (same goes for cab lights,)... If / when I order one it will not have either.

 

[Cummins12V98]

For one it impedes headroom,.. I barely fit under it as well as brings in alot of heat, I am thinking about having UV blocking ceramic tint put on it). The primary thing is I have NEVER owned a car with a sunroof that did not leak.. they all do, its just a matter of time. (same goes for cab lights,)... If / when I order one it will not have either.

Interesting comments. I have owned a 2011 and current 15 with continued use in sunny enviroments since 2011 with no leaks and never noticed a lot of excess heat. If I don't want the Sun shining in I slide closed the cover and that creates an insulating air space. I am nearly 6' 2" and don't come close to scraping my head. Would I order another, maybe maybe not.

 

[AH64ID]

For one it impedes headroom,.. I barely fit under it as well as brings in alot of heat, I am thinking about having UV blocking ceramic tint put on it). The primary thing is I have NEVER owned a car with a sunroof that did not leak.. they all do, its just a matter of time. (same goes for cab lights,)... If / when I order one it will not have either.

The huge effect on headroom is why I didn’t order one. My head rests against it sitting normally, which is ridiculous for a full size truck.

The Ford moonroof doesn’t have this issue, nor does the Ram 1500.

 

[wyosteve]

Ditto on the sunroof/headroom. That's part of the reason I got rid of my 2012 Longhorn. Plus I've had one on other vehicles and never use it anyway.