A regen is only allowed when Often, a forced regeneration is a necessary action to either correct the issue at hand or get the vehicle out of limp mode long enough to get it to a service center. 3. Passive regen v. active regen Download free educational guides and resources. Active regeneration happens when changes in engine operation are required to get the Engine Control Module (ECM) to burn out and/or some catalyst is introduced. You need to monitor a few parameters to assess whether or not it is necessary to run a forced DPF regen. If the DPF soot level is too high, the engine computer program will not allow the system to regenerate. In some instances, forced regeneration is the correct action to fix the problem. To stop a parked regeneration, depress the brake or throttle pedal. Often shortened to "regen," a DPF regeneration is the act of the system burning off collected particulate matter and turning it into ash. If it becomes clogged, more soot will be produced as the exhaust is not being adequately cooled. He recommends working in conjunction with a service facility to gauge where youre at on the need to clean, a matter of gauging the level of [exhaust flow] restriction in the DPF. At 130,00 miles, he suggests, flow test the filter. Note: Be Diesel fuel with Reddit and its partners use cookies and similar technologies to provide you with a better experience. The filters purpose is to trap particulate matter that a diesel engine outputs to meet the standards set by the United States Environmental Protection Agency (EPA). All rights reserved. FORScan and others do not seem to give "accurate" readings in relation to what Ford has programmed the ECU/PCM. The Fora platform includes forum software by XenForo. DPF? This is common among trucks with a lighter duty cycle, because soot accumulates while idling or going slowly through traffic. Dmitry has been an editor and author at Cararac.com since 2015. 70 grams -160% Soot Loading 1)P2463 Diagnostic Trouble Code (DTC) sets, 2)Reduced Engine Power, 3)Service Regeneration required 87 grams -200%Soot Loading By accurately troubleshooting the problem, the solution should become evident. Mobile truck Repair Unit, such as A Plus Truck Repair is on standby 24 hour a day 7 days a week, so we handle all road related breakdowns. Youll need to clean very, very carefully so as not to damage the filter, and removing particulate matter must be handled with the proper equipment and care so technicians are not exposed to its extremely fine contaminants. cancel a Parked regen cycle when the cycle is running. DPF maintenance is relatively straightforward. Intervals will be shorter, too, if your foot is fairly leaden. Trucks that drive local routes and rarely maintain typical highway speeds for extended periods rarely meet the conditions for a passive regeneration. 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. Engine maintenance is a higher priority than ever A technician should not have to guess that a forced regen will correct an issue. For drivers engaged primarily in long-haul, with plenty of on-road time at greater than 50 percent of load on the engine, it might go as high as 200,000 to 225,000 miles before any need to shop-test the filter, Mustafa says. All Rights Reserved. exhaust temperature as a result. The engine can derate when a needed regen does not occur, potentially causing downtime by leaving the vehicle in a state that is either undriveable or in limp mode where it can only operate at slow speeds. Soot Level Low, Why Force a DPF Regen? (3-Minute Read) Once the Recovery regeneration process completes, Remember the tips provided in this document and you will help fleets and service bays operate more efficiently. issues of Grounds for Success for more tips and information. High air pressure is used to agitate the particles and remove them from the filter. At about 85% soot capacity and above, the DPF will need to be either removed and cleaned or replaced. Soot Level High Regenerate DP To Prevent Derate Regenerate DPF To Prevent Derate The diesel particulate filter (DPF) is a device that collects exhaust gases and burns off carbon deposits. Find out why the problem has occurred. Eventually, the DPF system needs cleaning when ash levels are too high but regens significantly extend the amount of time before a technician intervention is necessary. Why can't I regen before my trip "conditions not met". The machine Technicians and fleet personnel must keep in mind they waste valuable time, money, and other resources when a forced regeneration occurs unnecessarily. When soot concentration becomes too high, it negatively affects oil quality and can lead to engine wear, reduced power output, and increased fuel consumption. soot in the soot filter. Passive regeneration happens frequently in long-haul trucking because it requires continuous driving where the DPF can hit a temperature above 1,000 degrees Fahrenheit to create the heat levels that turn soot into ash. Youll also want to get to work on it sooner rather than later, as continuing to operate the vehicle at this stage can ruin the DPF and cause other damage. Jacob is a CPA licensed in Arizona, has a Master's degree in Accounting, a cellist, a so-so surfer, and the father of eight children. Its just there to let you know whats happening with your In these cases, it is important to adjust the driving style in order to ensure that the engine is running at optimal performance. The value may fluctuate, and this is regen cycle when requested or desired by the operator. When the soot level is too high for a passive or active regen to occur. Examining data derived from one of the most common engines from JPRO connections, we discovered a significant number of regens performed when there was no suggestion to do so. A DPF agglomerate has a diameter of 100 nanometers. Here's what those percentages mean: Above Soot Load 78%: Reset regeneration is activated by the engine ECU. Stay safe, stay healthy & be blessed. We walk you through everything you need to know. You Have The Right to Repair This TruckOr Do You? Required Action: Vehicle must be parked and a Parked Regeneration or Service Regeneration must be performed. be disabled on the unit. Thermal cleaning doesnt remove anything, but makes it easier to do the pneumatic [air] cleaning. Using the wrong type or low-quality oil can lead to increased soot production since it won't be able to properly lubricate all the engine components. In conclusion, it is in the very best truck operators interest to monitor the condition of DPF system and not let it get extremely plugged up with soot and DPM. Many of our clients have seen daily regens go to weekly or monthly regens. JPROs Aftertreatment Diagnostics feature presents users with the values, data, visuals, and features needed to diagnose and begin repairing aftertreatment issues. So, what is This will only be enabled A Plus Truck Repair Roadside services for Commercial Vehicle Sacramento. Noregons database of repair information, NextStep Repair, is maintained by ASE-certified master technicians to help technicians of all skill levels follow the correct step-by-step repair procedures. When the Parked/Stationary regeneration is required, the display will prompt Cookie Notice In addition, There are multiple reasons that may prevent a DPF regen. Read the entire description and do not assume a mention of the word Filter, DPF, SCR,or Aftertreatment means a forced regen is the solution. Additionally, make sure to inspect other potential causes of high soot levels, such as fuel injector issues, engine-related problems, and certain operating conditions. In the particular example he shared, a 2015 Kenworth came in after being driven through warning-light processes on the dash to the bitter end (the bottom icon in the image below). The regeneration process occurs when the car is running at high speeds or when certain environmental conditions are met, such as air temperature and exhaust gas temperatures. A regen causes an engine to sustain substantial revolutions per minute (RPMs) for a considerable amount of time during the process. All Rights Reserved.Privacy Policy| PO Terms & Conditions| Third Party Licensing | Warranties | Transparency in Coverage. Mustafa's DPF warning-light breakdown **1. By recent, we mean 2007; diesel trucks from that model year and onward are blessed with a diesel particulate filter (DPF). This happens with the soot level reaches a certain threshold. Receive repair requests and generate service orders quickly and efficiently. The filter removes a lot of the DPMso much so, you could place a white handkerchief over the exhaust pipe and it would stay white. DPFs can be cleaned in a variety of ways, depending on the type of filter and the severity of contamination. In this article, we will review in detail how to diagnose and solve the problem of high soot levels in a diesel car. Tier 4 engines for both regulatory and technical reasons. Scan this QR code to download the app now. However, the powder-like ash material comes from the additives found in engine oil and continues to build up despite repeated regenerations. Each company we work with has specific experience requirements for their drivers. Driving short distances without allowing the engine to warm up properly can also lead to higher soot levels. Lose as little as 1 percent of that content by some estimates, and youre likely to get active fault codes for low-quality DEF, Mustafa says.
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