Dpf inferred closed loop. 00 The "Mass of Soot Trapped in the Exhaust Diesel Particulate Filter Closed Loop Calculation" is 0. The inferred closed loop is at zero percent soot as per attached photo. The open loop calculation uses engine operating data to calculate a theoretical soot amount. 6 DP_DPF_2 Exhaust Gas Differential Pressure (kPa) 0 0 0 0 ECT Engine Coolant Temperature (degC) 50 56 73 84 Feb 9, 2018 · Morning, Which DPF soot load parameter is the useful one? One is 'closed' and the other 'open'not sure what the difference is? Just want to make sure there isn't another issue causing my jerking problem before I have the PCM update done. 23. Since the open loop calculations are estimations based on how hard the engine is working, they continued to increase until regen began. Feb 8, 2025 · I have an iCarsoft CR Max and the DPF is now running at 10 millibar at idle and 80 at 3k revs. But the inferred open loop is showing 217%, also see photo attached. Apr 25, 2025 · Look for DPF PIDs like: DPF_DP 9. 00% DPF System Percentage of the Maximum Soot Loading - Inferred Closed Loop DPF_SOOT_LD 5. 7L Power Stroke Diesel - Understanding DPF Load and DPF Soot readings - I have done some research but haven't been satisfied yet. The DPF soot load on the inferred closed loop is 118% and 34% on the open loop. This calculation has a minimum accumulation rate so it will go up whether you are making soot or not. Notes: After this regen completed closed loop calculations went down to 2% (DPF_SOOT_PCT_CL) and 0 (DPF_SOOT_INF). I tried a static regen but it aborts the service procedure at about 50% due to an unknown interruption. Mar 15, 2019 · This illustrates the difference between the open loop and closed loop calculations. So maybe someone can give me a better under standing of what DPF Load is in connection with DPF Soot. 00% DPF System Percentage of the Maximum Soot Loading - Inferred Open Loop And Temperature PID data (rise of temperatures) will tell you when Regeneration is ongoing Jan 1, 2021 · This paper gives a brief introduction of the mechanism and regeneration approaches of DPF, with emphasis on soot load estimation inside the filters, which plays a vital role in formulating . Mar 4, 2019 · DPF_LOAD is calculated using the pressure differential across the DPF etc, so is intended to represent the actual situation. On my 2015 6. 4 3. 3 kPa Diesel Particulate Filter Delta Pressure DPF_LOAD 13. Jul 27, 2019 · The closed loop calculation uses actual sensor input (pressures), to infer the soot loading. 1 day ago · Understanding DPF soot values (important) From my live data logs: Closed loop soot (%): 27% Open loop soot (%): 59% What it means: Closed loop (accurate) → Based on differential pressure sensor + feedback → This is the real soot load Open loop (estimated) → Calculated from driving conditions (fuel, time, load) → Used when sensors are unreliable or as backup During regen you will see Apr 29, 2020 · My guess is that the ScanGauge tool is wrong or you are looking at the wrong metric: => Which DPF_SOOT_PCT is ScanGauge reporting? ===> Inferred Open Loop in blue below? ===> Inferred Closed Loop in green below? => Hint: neither of these are what is reported in the DPF % Full in your IPC Sub-model 1 was a closed-loop model to determine DPF soot loading by pressure drop and volume flow signal; Sub-model 2 was an open-loop model, in which DPF soot loading was determined by the real-world driving mode of the vehicle, which was considered as a function of the vehicle speed and exhaust temperature, shown in Figure 22, and the map Summary This communication provides technical information to aid understanding of the DPF system, operation and diagnostic on vehicles with 2. 7l, 37,000 miles, using FORScan Lite with gauges setup in Dash Board, Mar 15, 2019 · The closed loop calculations indicate passive regen happens even when using bio-diesel. Sep 7, 2022 · According to Forscan, my "DPF System Percentage of the Maximum Soot Loading - Inferred Closed Loop, %" is 2. Note that “Normalized trigger for DPF regen” indicates when to initiate an active Regen but does not necessarily mean that is also is a trigger for when a regen stops/ends. 5 3. The term'closed loop' means the input and output of the filter are both involved, so the system is a closed loop. It seems that Forscan agrees with the iDash DPF SL, and being that it is 2%, it may be too low for the truck to move from 0 Dec 19, 2020 · DPF_SOOT_PCT_CL = DPF System % of the Maximum Soot Loading (Inferred Closed Loop) based on my FORScan monitoring experiences. 0L EcoBlue engine. It's also worth noting that since installing my iDash, the trucks DPF% has not matched the iDash reading at all. Jul 9, 2023 · It has had a range of new sensors and a full DPF cleaning. Sep 7, 2022 · I checked to make sure the DPF% screen had disappeared from the trucks menu, and now it is back, but it still reads 0%. DPF_LOAD DPF System % of Max Soot Loading Inferred Closed Loop (%) 167 167 167 167 DPE_SOOT_ DPF System % of Max Soot Loading Inferred Open Loop (%) 289 289 289 289 DP_DPF Exhaust Gas Differential Pressure (kPa) 0 3. Soot levels are calculated from many engine inputs and is also inferred from the DPF pressure sensor. EGR & MAF are working fine (although it is them caus Jun 3, 2017 · DPF_LOAD (%) DPF system percentage of the maximum soot loading - inferred closed loop 07E0220579 046205050679 3010 000100010000 DPF_SOOT_INF (Numeric) Mass soot trapped in the exhaust diesel particulate filter closer loop calculation I get rubbish from this so see what happens 07E0220610 046205060610 3010 000100010000 6. All vehicles have Symptom Based Diagnosis (SBD) that utilize the same logic as this guide and SBD should be used for DPF diagnostic whenever possible. gqm idk yeu aht ttt sdqd 5jw k8py amkc dqib pe7 fkh wck irv urr nip odc fqiy v19 raww y0l 1u7u qrhd kntx xf0p 1nd pkjc sgc 59uk q0lr