Aquestion thatcomes up pretty often is, is there a way to manually regen aPaccarengine?' How do I use optimized idle 2018-2023+ Freightliner Cascadia? This particular Regen took approximately 35 minutes to complete. Trick is try to avoid the regen and stop and go driving at the same time. Bucket Truck Privacy | We'd appreciate any help you can offer in spreading the word of our new site. If your parked regeneration process takes longer than 45 minutes to an hour, something is wrong and you should take your truck to a mechanic as soon as possible. Example: 2013 Volvo D13, has SPN 4094 FMI 1, MID 128 PSID 90 FMI 14. Turn off PTO. You can find more information aboutthePaccar DEF derate here. The amount of regen that is required will depend on the quality of the oil and gas used. However, this time can vary depending on the volts and amps of the system. You will likely need to log in when the update is done so make sure you have that information available before we shut down. The parked regen is controlled by your engine computer and aftertreatment system. The truck is ready to go if you can force the DPF to regenerate without any error codes or other problems popping up. Dashboard lights up (DEF Quality being evaluated, 5mph temporary removed, continue driving). If you can no longer start a regen then you will eventually get stuck in a derate which will then lead to an engine shut down. Plug in the OTR reset tool into the diagnostic port. First, wait for the regeneration to start and then monitor the exhaust temperature and RPM. How can I fix it? What does it mean if your forced DPF regen lasts longer than normal?I imagine that as you were reading this short blog post you can recall a time when your truck may not have given you the three successful indicators. Stay safe, stay healthy & be blessed. Comment * document.getElementById("comment").setAttribute( "id", "a8401f7d106e7fa831270c305308476a" );document.getElementById("f8344837cc").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. By checking this box and clicking the "Send me job offers" button below, I represent that I: By checking this box and clicking the "Send me job offers" button below. A forced regen occurs when soot builds up inside the diesel particulate filter (DPF) to the point that the vehicle is no longer operable. A failed active regen can have a wide variety of causes because it depends on specific circumstances being present. NOTE:You need to make sure you are in a safe area away from other vehicles when starting a parked DPF regen. The cost for a forced regeneration generally falls between $300 and $700, depending on the technicians required diagnostic time and the length of time your DPF regeneration lasts. This is because a forced regeneration wont work at this soot level. A regen is a process that helps to clean the exhaust system of a vehicle. If your trucks DPF regeneration process is taking an hour or more, it likely indicates that the exhaust temperatures are not reaching a high enough level to effectively burn off the soot collected in the DPF. Check out our other blog posts. Manual regeneration of the DPF system may be required to ensure normal operation of the DPF. The system performs a forced DPF regen to make sure the aftertreatment system is in good working condition. Brakes, Air & ABS (Anti-Lock Brake System), Drivetrain - Transmission, Clutch, Differential, Driveline, Wheel End / Hub, HVAC (Heating, Ventilation and Air Conditioning) System. A regenerative brake system can take up to two hours to fully charge a parked vehicle. Park your tractor on a flat surface in a well-ventilated area. Parked DPF regen: Truck asks for DPF regen and you start the DPF regen by hitting a button on the dash. This process can only occur while the truck is moving. Mechanic's Assistant: What's the make/model/year of your truck? Make sure your enginespeed is downtoidle, ensure you have your parking brake set, engine brakeswitchis off and cruise control is off. If you are currently derated at5mph with a, You need to have a diagnostic tool such as. The parked Regen takes approximately 30-60 minutes based on soot level and other conditions. What is face plugging? How long should a forced DPF regeneration last? As soon as possible, take your truck to a mechanic to have it checked out. How does it happen? How does it happen? How long does a parked DPF regen take? You can manually run regen in your Volvo by pressing the "S" button on the dashboard. This can be done by any service shop with the appropriate diagnostic software. Every month 400 people find a job with the help of TruckersReport. Select which engine you have for your diagnostic package. Do not attempt to put the transmission into gear or engage the clutch/service brake/accelerator. Once the RPM's drop back down to an idle the regeneration is complete. Job Listing Rules. In order to get the best performance from your car, you need to make sure that the Jake brakes are turned off, the cruise control is turned off, and the engine temperature is at the correct level. In general, it is best to assume that a regen will take at least two hours to fully charge a parked vehicle. My regens happen around every 150 miles when towing and 500 miles empty and last about 10 miles. The parked regen is a process of self-cleaning of the DPF filter and you start this process by pressing the regen button located on the dashboard. Various diagnostic codes related to emissions and engine buildup may also appear. Heavy Equipment Forums is scheduled to go offline at 6:30am Eastern Sunday March 5th for an extensive software update. Ben Witter, Jan 2, 2015 #7 gearheadred Member Joined: Aug 9, 2018 Messages: 20 Location: georgia Here is the Volvo L60G L70G L90G Wheel Loader Operation and Maintenance Manual gearheadred, Feb 21, 2019 What Does OBS Mean For Ford Truck Old Body StyleHow Many Gears Does a Semi-Truck Have?How To Make Your Pickup Truck Louder in Legit WaysHow Much Do Monster Truck Drivers Make In 2022?How to Load and Transport a Motorcycle into a Truck?How to Transport Drywall in Truck Safe & Simple WaysHow Much Does a Bucket Truck Weigh Why Consider Weigh? OTR Diagnostics allows you to read and reset fault codes, view live data, and run advanced diagnostic functions, including forced DPF regen with your mobile phone or tablet. Make sure you are not pressing your brake pedal or your clutch during this time. What happens if I stop the regen once it has started? If your tractor has auto regen mode and you want to continue to work, make sure youre working in a well-ventilated area with non-combustible materials. If it starts blinking again, you need to increase RPMs. Volvo L60G L70G L90G Wheel Loader Operation and Maintenance Manual, (You must log in or sign up to reply here. To fix the issues, the truck must go through all of its inspections to ensure that the system is operating within the parameters established by the manufacturer. Doing a parked regeneration. Transport Chickens However, interrupting a regen if necessary wont harm your car in the short term. So you can start a forced DPFregen even if you have DEF quality fault codes. Engine FAQs, Freightliner Cascadia / Detroit DD13, DD15, DD16 & Cummins ISX etc. The truck needs to run through all its checks to make sure the system is within the limits set by the manufacturer in order to clear the faults. When the regen light comes on, here's what you do: Park your tractor on a flat surface in a well-ventilated area. If you fail a parked DPF regen you need to be aware that this will only lead to more issues and/or more derates if you continue driving. We recommend running a service DPF regeneration once a month. That's how DPF Remedy solves DPF problems starting with the first tank of treated fuel. Performing a forced DPF regen will guarantee that there hasnt been any soot buildup in the DPF / SCR System. Modern tractors are wonders of engineering. Truck Last. However, this time can vary depending on the volts and amps of the system. Another varying circumstance is how often your truck regenerates. You must keep the RPMs up during the regen, which will last about 15 minutes. When used frequently, the capacity to continuously delay the process, though, can develop into bad habits. Here is a blog where we coverPaccar EGR derates in more depth. How long does a parked regen take Freightliner? Chevy Truck For the sake of this blog postlet'sjustassumeyou have OTR Diagnostics or the OTRReset Tool with ForcedRegeneration (regen)capability (you should buy one if you dont have it yet). The ECM/ACM will not deactivate this fault code until after a service-forced DPF regen is initiated and all checks have been completed to ensure that the NOx sensor values are within the required limits. In a future blog we will dive deeper into what causes a longer forced DPF regen. So be aware of what is going on so you can seek service as soon as possible. The OTR reset tool will allow you to do this within 30 seconds - 4 minutes. Paint Silverado Truck Your DPF system may last longer if you remember to do this more than once. Unfortunately, far too often it does not go quite as smoothly. If youre working and the conditions are met for auto regen, it will start automatically and you can continue working as normal. On one of the trucks, volvo 780 with d13 engine. Please select the number of verifiable months youve been driving professionally using your Class A CDL within the last 3 years. Thetemperaturelight on your dashboard may come on when the exhaust temperature isgetting hotteras it is going through the regen process. You will need to be in a spot that you can stay in for upwards of 60 minutes. Warm up the engine. You need to have a diagnostic tool such as OTR Diagnostics or OTR Reset Tool, or DAVIE to perform the troubleshooting and/or forced regen. The OTR Reset Tool is specific to which model and engine you have. The only way to clear this fault code is to make sure your DPF/SCR system is operating without any other faults. Today we will show you how to do a Parked Regeneration while also being informed on what a Parked Regen is, and why it is important. Previous: How often do you have to Regen a Freightliner? Check out our other blog posts. You can find more information aboutthePaccar DEF derate here, Here is a blog where we coverPaccar EGR derates in more depth. Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device. This fault will stay active until a service forced DPFregen is activated and the ECM/ACM runs through all the checks to make sure the NOx sensor values are within the required limits before it makes this fault code inactive. Looking to learn more? Unfortunately, far too often it does not go quite as smoothly. How Far Away Should I Sit from the Steering Wheel? Choosing a selection results in a full page refresh. Tell-tale symptoms of a successful (or unsuccessful) forced DPF regeneration. It will probably happen much faster if you engage in passive regen as part of your daily routine. This means that the truck is still trying to reduce the soot levels, which can eventually lead to clogs and other problems. Firearms The aftertreatment covers the EGR, DPF, DEF, SCR systems. Typically, youll also get an associated trouble code that gives you a fairly clear picture of what is going on. You should plan on waiting for this amount of time if you've been putting off regen for a while because soot buildup has only increased. Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device. 2011 Volvo Cummings. my truck ask for parked regen once in 8-9 months before but last time i had a parked regen 1800 miles ago,it took 2 hrs but now i again i get a light 3 hrs ago and since then it is doing parked regen and still counting . Please, subscribe to help grow the channel, if you find this video useful give it a thumbs up, share it with those you think they might learn something about it.Thank You and May God bless You.#Volvo #Mack #Kenworth #learn Thank you for visiting HeavyEquipmentForums.com! It's that powerful and it happens fast. The aftertreatment covers the EGR, DPF, DEF, SCR systems. What's the difference between parked DPF regen and forced DPF regen? Cummins ISB, ISL, ISX and Paccar PX Engines, Detroit Diesel S60, DD13, DD15, DD16 Engines, International Maxxforce 11/13 N13 N9 N10 Engines, What are SA SPN FMI - Beginners guide to fault codes, OTR Diagnostics Closer Look - Advanced Fault Codes Explained. We equip you with the power to perform advanced diagnostics easier and faster than ever before while over the road. In some cases, it may also be due to a blocked DOC. A check engine light accompanied by a Regen light along with a message in the. But keep this in mind: it requires your attention sooner rather than later. Make sure you have plugged the reset tool in correctly before proceeding. Regens should never be put off because doing so will only make your eventual required process take longer. How can I fix it? Once parked, you should push the start regen button and hold it for at least 5 seconds. How long is parked regeneration? The process generates a lot of heat. Just like mostother operatorsthat areusing our toolfor preventativemaintenance, this would be the typical experience. Volvo, Mack, Detroit Diesel, among other manufacturers, use this technique as well. During this process, fuel is injected into the DPF to create high temperatures. 1-5 Months This is typically dependent on duty cycle and how much soot collects within the system. as long as there are no issues inhibiting it. Press and hold the regeneration button for a few seconds, until the regen warning light goes off and the regen process light starts to blink. Depending on the type of regen, the amount of buildup, and the engine type, truck regenerations can last anywhere between 20 and 60 minutes. Knowhowlong.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Select which engine you have for your diagnostic package. During this time, the indicator light stops blinking and is on and steady. Between thirty and sixty minutes is the average time it takes to complete a forced regeneration. A forced DPF regen will make sure there is no soot buildup in the DPF / SCR System. If you are having difficulties with your vehicles regeneration process, there are a few things you can do to try and troubleshoot the issue. Transport Kayak Welcome to the new subscribers and thanks to visit the channel for those already subscribed, today in Let's Talk DIESEL, this is the part #2 about how to do . We equip you with the power to perform advanced diagnostics easier and faster than ever before while over the road. When the soot reaches a certain threshold and the active process to burn the soot off begins, this occurs. However, your vehicle has to be asking for a regen or else it will not start. It may take a little longer at a low average speed. Choosing a selection results in a full page refresh. The first step is to park in a safe spot. Call Us: (586) 799-4375, comes up pretty often is, is there a way to manually regen a. The engine RPM will come back down toidle once it has finished the parked regen. Untilnext time! 3 Indicators of a successful forced DPF regenFirst, as a general ruleofthumb,a forced DPF regen should last approximately 45 minutes. When an active regeneration is required, the engine controls will look for operating conditions where this can be performed in the . Various sensors can also cause issues, such as faulty DPF pressure sensors or engine fault codes. Additionally to other manufacturers, this technique is applied to Volvo, Mack, and Detroit Diesel products. The more members that join, the bigger resource for all to enjoy. Hold down the regen button and keep holding the button down for at least 10 seconds. But the truck has to allow you to do one. Wait for the process to finish, about 30 to 40 minutes. The rate of particle accumulation, and how often you need to regenerate depends on several factors, including your specific brand and model and how it is used. Inaccurate or Erratic DEF Level Gauge Readings or DEF Consumption Issues on a Freightliner Cascadia Truck with a Detroit DD15 Engine FAQs. Lower a Truck Start the engine, make sure its at operating temperature. Thanks for joining us and I hope you enjoy your stay!! Furthermore, it also depends on the age of a car too. Concrete How does it happen? Dirt Bike Tags: Detroit DD15 Parked Regen, Freightliner Cascadia Parked Regen, Freightliner Cascadia . There are several common causes of DPF regen failures, which can include anything from malfunctioning hydrocarbon dosage to turbocharger issues and even a clogged DPF. So thats it, all pretty easy as long as you know whats going on. Every truck manufacturer incorporates this feature into their vehicles so that the truck can continue to run when the DPF filter soot level reaches a specific level. When the indicator light flashes, regen needs to happen immediately. If that happens, diesel can contaminate the oil. How long should a forced DPF regeneration last? This can happen to the point where the vehicle is no longer operable. So even with DEF quality fault codes, you can start a forced DPF regen. The idle speed returning to normal, the distinct smell of burned soot coming from the tailpipe, and an increase in temperature on the exhaust components all around are some indications that your parked regen has successfully finished. A forced DPFregen will ensure that the DPF / SCR System is clean from any soot buildup. Every Attachment You Might Need for Your Kubota Tractor. Mechanic's Assistant: Are you fixing your truck yourself? Ensure you are not parked on or under anything flammable such as trees or dry brush. Next: How to do a regen on 2018-2023+ Freightliner Cascadia? If the regen starts and stops then you may have a problem that prevents the regen from taking place. Keep the engine running in idle. During this time the engine idle speed will increase. You can start a forced Even if you have DEF quality fault codes, DPF regen. If you have any question, please drop it in the comment section below. OTR Diagnostics allows you to read and reset fault codes, view live data, and run advanced diagnostic functions, including forced DPF regen with your mobile phone or tablet. This includes engaging the clutch, service brakes, or accelerator or putting the tractor in gear. Do not ignore regen requests as the problem will only worsen and lead to a de-rated condition. Remember the exhaust temps can reach upwards of 1200 and will be hot for some time after the regen is completed. The engine light/regen light may stay on after the regen is complete but will turn off after a short period of time. Drive Safely!In this particular case the driver ran the tractor into a de-rated condition and will not allow normal driving conditions. Assuming youre referring to a Freightliner Cascadia, but in any case a general rule across all makes and models of semi trucks. The reason you dont want to stop the regen is because it will trigger a failed regen response to the engine computer and you will end up in a derate. How to adjust the clutch on a Freightliner Cascadia? Silverado Truck Fire Truck In CDL School Now What Distinguishes Parked Dpf Regen From Forced Dpf Regen? Tell-tale symptoms of a successful (or unsuccessful) forced DPF regeneration. If you have an infrared thermometer you can even monitor exhaust temperatures during the forced DPF regen and youll see a clear change in temperature before the DOC +DPF, in the DOC +DPF,and after the DOC +DPF as the forced DPF regen process moves along. The conditions here do not have to bemet perfectly and they will force a regeneration to take place. But the truck has to allow you to do one. Will a parked regen work when in limp mode or stuck at 5mph? Volvo VNL Semi Truck & Volvo D13, Cummins ISX etc. Forced DPF Regen: A diagnostic scan tool at the dealer level will initiate a forced DPF regen. . How long does Volvo Regen take? It will continue to regen until the soot level has reached 'low' or '0%. Select which engine for more specific details. Parked regen is a more manual process that requires you to stop working. If you see the DPF status light flashing, it means that the filter needs to be cleaned and regenerated. Make sure coolant temperature is up to at least 185 degreesFahrenheit. This fault code could be the issue of why you are required to do a parked regen. Try to avoid that so that you don't take longer than needed and avoid the making of oil. The DPF light will probably be the first indication that you need to restart your truck, followed possibly by the Check Engine light. Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device. Tell-tale symptoms of a successful (or unsuccessful) forced DPF regeneration. You should plan on waiting for this amount of time if youve been putting off regen for a while because soot buildup has only increased. Looking to learn more? The appearance may be different than you're accustomed to but we will work on restoring things as closely as possible. When this happens, a driver has to pull over and initiate a self-cleaning process that can take up to 40 minutes. Transport Motorcycle It will continue to regen until the soot level has reached low or 0%. Some trucks will let you monitor your soot level gauge on the dashboard. How Much Does a Bucket Truck Weigh Why Consider Weigh? In this case you will not be able to performa parked regen. You sit therewhile the truck goeson and on with the high idle, dash notifications,DPFlights lit, andlike clockwork 45 minutes later the idle drops back to its normal burble. Stationary regeneration is also referred to as parked regeneration, high idle regeneration, or nonemission regeneration. When this happens, a driver has to pull over and initiate a self-cleaning process that can take up to 40 minutes valuable time that could have been spent on the road. 3 Years Terms | It isHIGHLYRECOMMENDED that you do NOTstop the regen once it is started. Untilnext time! The OTR Reset Tool is specific to which model and engine you have. The device used to deliver clean emissions is called a Diesel Particulate Filter (DPF), and it can get gunked up with soot every now and then. A simple thing like the ECM not seeing the park brakes position can cause a lot of expensive down time. This process can take up to 40 minutes, which can be valuable time that could have been spent on the road. Press the space key then arrow keys to make a selection. FAQs, Kenworth W900 / Paccar MX-13, Cummins ISX etc. On a monthly basis, we advise performing a service DPF regeneration. When delaying the process, keep that in mind. How and When Do You Communicate With Brake Lights To Prevent Car Accidents, How to Measure a Truck Wheelbase Proper Ways to Measure, What Are Retarders On A Truck What to Know, What Is Deadhead Trucking How to Reduce It, How to Start a Dump Truck Business What to Pay Attention, Armored Truck Driver Salary How Much Do They Make, What Is A Boom Truck Difference Between Truck Crane & Boom Truck, Is Your Pickup Truck Considered Commercial Vehicle How to Define, How To Get A Truck Stuck In Mud Out: With 7 Steps, How To Lift A Truck A Step-by-Step Guide. The process should last between 45 minutes to an hour and no longer. FAQs. Active regeneration can take up to 60 minutes and consume up to a half gallon of fuel. A parked regen will take approximately 2 hours to complete. Thank you for joining Heavy Equipment Forums! An active DPF regen is when the truck does this process automatically. Trailer - Brakes, Air & ABS (Anti-Lock Braking System). A forced DPF regen is done in order for the system to verify thatthe aftertreatmentsystem is ingood and working order. Depending on the make and model of your car, as well as the severity of the clog, a parked regen can take anywhere from a few hours to a few days. An engine may completely shut off if the buildup is severe enough to endanger the DPF and engine. The engine RPM's will start to increase from IDLE to a higher RPM. Truck What does it mean if your forced DPF regen is shorter than normal?If a forced DPF regen drops out before a half hour it would typically indicate an issue was detected by the computer and that itneeds to exit theregen process. Emission Years:EPA10(2011-2013)| EPA13(2014-2016)| EPA17(2017-2021), Equipped withDPF, DEF, SCR,EAS, PCI,EGR, VGT. Put all shift levers in neutral. This is a general overview, so be sure to consult your manual about where the buttons, lights, or indicator symbols appear on your specific model. A maximum of 45 minutes to an hour should pass during the procedure. Discussion in 'Wheel Loaders' started by macpiper81, Jan 2, 2015. A regenerative brake system can take up to two hours to fully charge a parked vehicle. Choosing a selection results in a full page refresh. This EGR derate will disable a driving regen and a parked regen. If your DPF is having difficulty regenerate, a forced regeneration may be necessary. If you currently have P1495/P1496 or SPN 1787FMI11 faultcodes,then you will not be able to run a parked DPF regen. I Need CDL Training Box Truck How long does a new refrigerator take to get cold? These high temperatures help burn off the soot that has built up in the filter. First, as a general rule of thumb, a forced DPF regen should last approximately 45 minutes. An active regeneration is a process that helps clean the DPF (Diesel Particulate Filter). Using the up and down arrows on the right hand side of the steering column go through the process below: Ensure you are in a safe area with the tractor and trailer brakes set. The more you idle, the faster your filter will get dirty and the more frequently it will need to regenerate. How often do you have to Regen a Freightliner? OTR Diagnostics allows you to read and reset fault codes, view live data, and run advanced diagnostic functions, including forced DPF regen with your mobile phone or tablet. How Much Do Monster Truck Drivers Make In 2022? This is due to the fact that idle speeds cause twice the wear on engine parts compared to driving at highway speeds. The symbol is the same across all major brands. Untilnext time! How Long Does A Truck Regenerate? ' Some trucks will let you monitor your soot level gauge on the dashboard. Price ALL NEW MEMBERS READ THIS FIRST!! Truck Driver You need to have a diagnostic tool such as OTR Diagnostics or OTR Reset Tool, or DAVIE to perform the troubleshooting and/or perform a forced regen. This is valuable time that could have been spent on the road. This is the pathway to go about running a parked regeneration when the soot level is high. If you keep driving your truck without doing a parked DPF regen your truck will enter a derated mode. How to Load and Transport a Motorcycle into a Truck? 2011-2021Peterbilt models and2011-2021Kenworth models. We welcome you to register using the "Register" icon at the top of the page. This will allow all of our members to see your question and give you the best chance to be answered. The 10-minute regen timer isjust a notification that a parked regen needs to occur. Well, this can happen when the activeregen failed for some reason. Deep Mud How can I fix it? Check out our other blog posts. What is face plugging? If youre wondering how long your particular car will take to regen while parked, the best thing to do is consult your owners manual. Thanks for your patience! As a result of your filters being cleaned and your exhaust system operating more effectively, you might experience higher MPG. If your particulate filter becomes clogged, it is important toforce regeneration of the filter to prevent engine damage. 4 Years Making sure to do this more than once could extend the life of your DPF system. The engine will make different noises and increase or decrease RPM as it doses fuel and increases temperature, etc. Pickup Truck Louder Where Are New Holland Tractors Made, and Who Makes Them? When its dangerous to carry out the procedure or you dont have enough time to finish, disabling regen cleaning can be useful. For example, an active regeneration could take place once a day or every other day. We, as technicians, get this question everyday, as Regeneration technology is changing, we must learn more about it. The truck only requests a parked DPF regen when this light is illuminated. Regens will vary per user/use/weather and who knows what else. Welcome to the new subscribers and thanks to visit the channel for those already subscribed, today in Let's Talk DIESEL, this is the part #2 about how to do the Parked Regeneration. Frequency refers to how often an active regeneration process occurs. The truck knows it needs a regen and when this occurs it can last anywhere from 10 minutes to 1 hour. What is face plugging? Running an engine at idle for extended periods of time can cause significant wear on internal parts, as well as increased maintenance costs and shortened engine life. The parked regen is controlled by your engine computer and aftertreatment system. The Check Engine light may also come on, so be sure to pay attention to any other warning signs. The short answer is, Yes! Put all shift levers in neutral. Make sure you are not jackknifed to where your exhaust stack is pointing at your reefer or trailer. After reassembling the components we removed, the truck was moved out of the shop and initiated a parked regen to clear the dash lights. So, you decide its a good idea to do a forced DPF regento get ahead of the potentialderatesand forced (or parked) regen requestthat always happens at the absolute worst times possible. There may be small variances, but in general, this is the amount of time it should take for the exhaust temperature to build up in all the components, for the 7thinjector to start injecting diesel into the exhaust stream,and for the reactionof exhaust gas and dieselin the DOC to take place andburn the soot throughout the DPF.