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Exhaust filter 100% full weirdness

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Again, I'm not sure where the confusion is. You linked an article on extended idling vs shutting an engine down, TC answered a question on the difference between an active regen and stationary. IE. What is the main difference. Nothing was ever mentioned about the effects of extended idling.
I'll repeat the pertinent facts again for effect.... ACTIVE vs STATIONARY. Comparison of the two. Nobody ever mentioned extended idling for ****s and giggles until you brought it up. Stationary Regen obviously has to crank up the RPM and temps to clean out the DPF where as extended idling would clearly do the opposite.
Hopefully that sums up today's lesson in reading comprehension :-laf

So, you are trying to tell me that there are "next to zero" (next to none) soot emissions at high idle?

I disagree. There are soot emissions at high idle. But in a regen or desoot event, the soot is burned off in the dpf faster than it collects.
 
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Where is the Tylenol.....

picsofguysholdingtheirheads.jpg
 
Newsa ...No one can have discussions with you,,,,,, unless its rooted in extreme left views. Newsa You are obsessed with arguments and debates about words .Constant disputes about minor matters by men who are corrupted in mind.
 
Arguing with Newsa is like playing chess with a pigeon All he's going to do is strut around, knocking all the pieces over, crap on the board, then declare victory.
 
So, you are trying to tell me that there are "next to zero" (next to none) soot emissions at high idle?

I disagree. There are soot emissions at high idle. But in a regen or desoot event, the soot is burned off in the dpf faster than it collects.


You need to learn about the HOWS and whys of a DPF regeneration.
 
You need to learn about the HOWS and whys of a DPF regeneration.

That is why I read this forum. It has been a gold mine of information.

But my disagreement was actually not about DPF regeneration or desooting. It was about whether or not soot comes out of the exhaust manifold at idle or at high idle (before the exhaust reaches the dpf).

The people arguing with me are the ones holding a grudge against me for previous arguments on the TDR political forum.

That is a very heated forum. And people tend to take it personally when I disagree with them.

I've learned alot here. And, Wayne, I realize you have taught me alot here. Thanks for the research you have done to educate us.
 
You should give credit to Snoking for stealing his line.

Once a Dem always a Dem eh? Giving credit to someone for a phrase they lifted from someone else. I guess that explains your predilection towards the party of liars. How about I credit the true author, Scott D. Weitzenhoffer? No wonder the children of today are in a sorry state of affairs. Do you routinely credit Barak Obama for quotes from Reagan? You proudly proclaim yourself to be an educator but don't even understand the difference between the words idle and stationary as it pertains to the discussion. Does your truck idle at over 1K rpm? Does it employ an engine management strategy of increased egt while idling? Does it burn in excess of 4 gallons per hour at an idle?
 
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I sure do miss the old cartoons. The crap that's on today is so touchy feel good it's nauseating. I don't know how people can even let their kids watch the stuff.
 
I've found a really good PDF on this subject- explaining it all from combustion basics to technician intervention.
Bear in mind that if a Diesel engine is running, a DPF is accumulating soot. Comparing soot production along an engine's power/ fuel curve is just symantics. Also keep in mind that this was made for Volvo heavy truck, but newsa, you should be able to weed out what you want to know.

http://www.arrowtruck.com/pdf/ADeeperLookIntoDPF.pdf
 
Does it burn in excess of 4 gallons per hour at an idle?

I erased your political badgering from the quote because this is not a political forum.

I don't know how much fuel my Cummins 6.7 burns per hour because there is no flow rate meter. It might never burn 4 gallons per hour because I have the 660 ft-lb derated version.

But if you argue that my Cummins has a zero fuel flow rate at idle or at high idle, then I will disagree with you the same as I have throughout this thread.
 
LMAO Again.

The Powertrain Control Module (PCM) monitors the soot load in the diesel particulate filter. Under normal operating conditions the diesel particulate filter is self-cleaning, where accumulated soot is converted to ash. Under light load operating conditions, the driver may be notified via the vehicle's Electronic Vehicle Information Center (EVIC) message center "CATALYST FULL: SEE OWNERS MAN" will be displayed on the overhead console of your vehicle if the exhaust particulate filter reaches 80% of its maximum storage capacity. Under conditions of exclusive short duration and low speed driving cycles, your 6.7L diesel engine and exhaust aftertreatment system may never reach the conditions required to remove the trapped PM. If this occurs, “Catalyst Full See Owner Manual” will be displayed on the overhead console in your vehicle. If this message is displayed you will hear one chime to assist in alerting you of this condition. Catalyst Stat::::::::::80% Catalyst Stat::::::::::80% will replace the message “Catalyst Full See Owner Manual” after it is displayed for one minute. The PCM will continue to monitor the amount of particulate matter trapped in the particulate filter. This message indicates the percentage of the particulate filter capacity that has been used. By simply driving your vehicle at highway speeds for as little as 45 minutes you can remedy the condition in the particulate filter system and allow your diesel engine and exhaust aftertreatment system to remove the trapped PM and restore the system to normal operating condition. Catalyst Stat:::::::::::80%, 90%, 99% Catalyst Stat:::::::::::80%, 90%, 99% If you are unable to drive your vehicle under these conditions for an extended period of time after the initial warning notification, the PCM will continue to monitor the particulate filter and will display the progression of particulate filter usage (80, 90, 99%) on the EVIC message center. CATALYST FULL SERVICE REQD If the particulate filter reaches 99% of its capacity, the overhead console in your vehicle will chime twice and display the message CATALYST FULL SERVICE REQD. At this point the PCM will register a fault code, the instrument panel will display a MIL light and the PCM will de-rate the truck, reducing its horsepower and torque output. The PCM de-rates the engine in order to limit the likelihood of permanent damage to the aftertreatment system. If this condition is not corrected and a dealer service is not performed, extensive exhaust aftertreatment damage can occur. In order to correct this condition it will be necessary to have the truck serviced by your local authorized dealer.

Intervention Regeneration Strategy – EVIC Message Process Flow (Late Build) The 6.7L diesel engine meets all EPA Heavy Duty Diesel Engine Emissions Standards, resulting in the lowest emitting diesel engine ever produced. NOTE: Depending on the build date of your vehicle or if the software has been updated, the EVIC may display the following messages. To achieve these emissions standards, your vehicle is equipped with a state-of-the-art engine and exhaust system. The engine and exhaust aftertreatment system work together to achieve the EPA Heavy Duty Diesel Engine Emissions Standards. These systems are seamlessly integrated into your vehicle and managed by the PCM. The PCM manages engine combustion to allow the exhaust system’s catalyst to trap and burn Particulate Matter (PM) pollutants, with no input or interaction on your part. Additionally, the overhead console in your vehicle has the ability to alert you to additional maintenance required on your truck or engine. Refer to the following messages that may be displayed on your Electronic Vehicle Information Center (EVIC):

Exhaust System — Regeneration Required Now “Exhaust System—Regeneration Required Now” will be displayed on the overhead console of your vehicle if the exhaust particulate filter reaches 80% of its maximum storage capacity. Under conditions of exclusive short duration and low speed driving cycles, your 6.7L diesel engine and exhaust aftertreatment system may never reach the conditions required to remove the trapped PM. If this occurs, “Exhaust System — Regeneration Required Now” will be displayed on the overhead console in your vehicle. If this message is displayed, you will hear one chime to assist in alerting you of this condition. By simply driving your vehicle at highway speeds for as little as 45 minutes, you can remedy the condition in the particulate filter system and allow your 6.7L diesel engine and exhaust aftertreatment system to remove the trapped PM and restore the system to normal operating condition. Exhaust Filter XX% Full Indicates that the Diesel Particulate Filter (DPF) is approaching full. Exhaust System — Regeneration in Process Indicates that the Diesel Particulate Filter (DPF) is self-cleaning. Maintain your current driving condition until regeneration is completed. Exhaust System — Regeneration Completed Indicates that the Diesel Particulate Filter (DPF) self-cleaning is completed. If this message is displayed, you will hear one chime to assist in alerting you of this condition. Service Required — See Dealer Now Regeneration has been disabled due to a system malfunction. At this point the engine PCM will register a fault code, the instrument panel will display a MIL light. IMMEDIATE SERVICE IS REQUIRED. See your authorized dealer as damage to the exhaust system could occur soon with continued operation. Exhaust Filter Full — Power Reduced See Dealer The PCM de-rates the engine in order to limit the likelihood of permanent damage to the aftertreatment system. If this condition is not corrected and a dealer service is not performed, extensive exhaust aftertreatment damage can occur. In order to correct this condition it will be necessary to have your vehicle serviced by your local authorized dealer. IMMEDIATE SERVICE IS REQUIRED. See your authorized dealer, as damage to the exhaust system could occur soon with continued operation.

- Exhaust System/FILTER, Diesel Particulate/Standard Procedure
STANDARD PROCEDURE - STATIONARY DESOOT
WARNING:
Due to the fact that the vehicle may be left unattended for up to one hundred (100) minutes during this procedure, every precautionary measure must be taken to ensure that the vehicle cannot be stolen and that no person comes in contact with the hot exhaust or hot exhaust gases during the procedure.
NOTE: Stationary De-Soot will not perform without a P1451 DTC. Updating the Powertrain Control Module (PCM) will automatically clear the P1451 DTC from the PCM's memory. If the soot threshold is great enough where a Stationary De-Soot is required, it may be necessary to drive the vehicle so that the P1451 DTC will reset.
NOTE: When using Diagnostic Scan Tool software at release 9.05, the fuel minimum specification to run the test is 1/4 of a tank of fuel.
1. Fill the vehicle with three (3) gallons of Ultra Low Sulfur diesel fuel to perform the procedure.
NOTE:
In order for Stationary De-Soot to begin, the vehicle must be parked with the parking brake engaged, be at normal operating temperature, have no active DTC’s unrelated to De-Soot, and have at least three gallons of fuel. If any of these conditions are violated after Stationary De-Soot begins, or if the service brake or accelerator pedal is pressed, Stationary De-Soot will abort.
2. Position the vehicle on a NONFLAMMABLE surface such as concrete.

WARNING:[/[/SIZE
[B]Exhaust temperatures will be extremely high. Do not perform this procedure on flammable surfaces such as asphalt, grass, etc. or adjacent to property that may be damaged by the exhaust gases, or in a location where individuals may be required to pass adjacent to the exhaust[/B].
3. Apply the parking brake.
4. Position the shift lever in Park or Neutral.
5. Lower the spare tire down as far as possible. It is not necessary to remove the spare tire from the vehicle.
6. Mark an area 12 feet (3.66 meters) by 12 feet (3.66 meters) surrounding the exhaust outlet. The exhaust outlet should be six feet from the fore and aft ends of the marked off area.
NOTE:
Ensure that the “HOT EXHAUST” labels are facing outward.
7. Ensure that the hood remains closed during the stationary regeneration operation.
8. If not already performed, connect the Diagnostic Scan Tool to the vehicle. 9. Start the engine.
10. Power ON the Diagnostic Scan Tool.
11. Scroll to the Powertrain Control Module (PCM) menu
12. Select Stationary De-Soot
NOTE:
During Stationary De-Soot, engine RPM will be elevated to 1,100 RPM. When the engine RPM returns to normal idle, the Stationary De-Soot has completed or aborted.
13. Initiate Stationary De-Soot.
NOTE: Stationary De-Soot may take up to one hundred (100) minutes to complete. It is not necessary to monitor the stationary regeneration cycle the entire one hundred minutes. In addition, it is not necessary to leave the Diagnostic Scan Tool connected to the vehicle once the stationary regeneration has been initiated. Periodic monitoring of the cycle can be accomplished by monitoring the percent of completion through the EVIC or by connecting the Diagnostic Scan Tool and reviewing the percent of completion on the scan tool.
14. Stationary De-Soot will automatically abort once the cycle is complete. If Stationary De-Soot needs to be aborted prior to the end of the cycle, any of the following manual methods can be used:
• Turning the ignition OFF
• Depressing the brake pedal
• Moving the PRNDL from P/N to D/R
15. Once Stationary De-Soot is complete, remove the antitheft device.
16. Position the spare tire back into its stowage position.

I see WHY # 7 is closed hood But when its Hot in the Summer I lift them in the winter or cold I like it to be windy 10MPH or higher.
 
I've found a really good PDF on this subject- explaining it all from combustion basics to technician intervention.
Bear in mind that if a Diesel engine is running, a DPF is accumulating soot. Comparing soot production along an engine's power/ fuel curve is just symantics. Also keep in mind that this was made for Volvo heavy truck, but newsa, you should be able to weed out what you want to know.

http://www.arrowtruck.com/pdf/ADeeperLookIntoDPF.pdf

Thx. A little Sunday reading. My wife thinks I'm crazy reading this for pleasure. She doesn't understand.
 
I erased your political badgering from the quote because this is not a political forum.

I don't know how much fuel my Cummins 6.7 burns per hour because there is no flow rate meter. It might never burn 4 gallons per hour because I have the 660 ft-lb derated version.

But if you argue that my Cummins has a zero fuel flow rate at idle or at high idle, then I will disagree with you the same as I have throughout this thread.



You are pathetic. 1st, you can't delete the truth. 2nd, your truck has an hr. meter. Time divided by fuel used = gals per hr. You've never averaged 4+ gals an hr for a day in the history of your ownership. I truly hope you're just PLAYING DUMB and aren't really that far below average.
 
You are pathetic. 1st, you can't delete the truth. 2nd, your truck has an hr. meter. Time divided by fuel used = gals per hr. You've never averaged 4+ gals an hr for a day in the history of your ownership. I truly hope you're just PLAYING DUMB and aren't really that far below average.

Yes, I am pathetic. :-laf

I don't trust anything my EVIC tells me. It tells me to change my fuel filter every 10,800 miles. And it tells me that in 4.2 years I only have 7 idle hrs.
 
Ok going back to the original issue.... I had a strange thing happen with my 2013 this past summer. Seems that I developed moisture in the lines to the DPF differential pressure sensor and in the end it took out the sensor. In my case it would trip a code every time I would change the throttle position/ Change speed. I wonder if your DPF is not clogged but the sensor has moisture in it and is causing the false readings hence it only showing up when it's cold ? Just a thought from a very tired Engineer that has had enough of the COMPUTER WORLD.
 
Yes, I am pathetic. :-laf

I don't trust anything my EVIC tells me. It tells me to change my fuel filter every 10,800 miles. And it tells me that in 4.2 years I only have 7 idle hrs.



I don't care how many idle hrs it says, it totals hrs. On average I burn 3 gals an hr, including towing. Think before you answer the next question. Do you think your truck burns more fuel Idling than mine does working? You made another dumb excuse and got caught, AGAIN. When you're in a hole, quit digging. Just leave it at once more, you commented on a topic of which you have little to no actual knowledge, and it made look foolish.
 
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