Doc inlet temp during regen.

Soot load was level 5. performed a parked regen. DOC inlet temp was bias. ... Mack MP8 regen issues. IROC Location Offline Posting Freak Reputation: 335. Thanks Given: 279 Thanks Received: 2901 (1040 Posts) Posts: 2,117 Threads: 155 Joined: Jul 2011 1 01-18-2020, 01:06 AM .May 22, 2012 · The AFI wont kick in tell the DOC and DPF inlet temps reach 500+*f and the DOC temp must stabilize. Whats the turbo command %, turbo speed, boost pressure, EBP, and engine load during a regen? CAT Factory Trained & Cert. Heavy Equip+Truck Systems. DPF Outlet Temp 1000 – 1150° F DOC Inlet Temp 700 – 950 ° F DOC Outlet Temp 1050 – 1150° F DPF Inlet Pressure 0.5 psi – 1.0 psi DPF Outlet Pressure 0.01 psi to 0.9 psi Doser Injection Status gradual increase from 5% to 45% • DOC inlet temp must be at 525° F or higher to dose fuel • If over 50% and Doser line pressure is above 50 Just an FYI there will be no HC dosing for the first 12 ish minutes of the regen. The doc inlet temp will raise around that 700-800 degrees mark in that first 12 min to burn Soot …

Volvo D13 regeneration. we have couple of trucks on our fleet with the same problem. The forced regen would start but runs indefinetly and not continuously. T he exhaust temp rises to about 500, dpf inlet and outlet reaches up to 920 and then engine suddenly changes tone, shuts of the aftertreatment injector, dpf inlet and outlet temps drop for ...DPF Temperature Sensor Module – A three-probe sensor where one probe tracks temperature levels at the DOC inlet, another monitors temperature at the DPF inlet, ...

6. Start the engine and perform a Parked Regen. 7. Let the regen run for 22 minutes then monitor the DOC inlet pressure. Is the DOC inlet pressure reading at or above 8 kPa (1.16 psi)? a. Yes; the DOC is face plugged. Use the DOC air cleaning tool PN: DSN0ATZ16002. Refer to section "Diesel Oxidation Catalyst Air Cleaning". Verify repair. b. No ...9. Wait for 10 minutes, then monitor the Diesel Oxidation Catalyst (DOC) inlet temperature and DOC outlet temperature. Are the readings within 14°C (25°F) of each other? 9.a Yes; stop the low temp regen and Go to step 10. 9.b No; replace the DOC inlet temperature sensor. Refer to section "Removal of the Diesel Oxidation Catalyst Inlet

Ask the driver if a parked REGEN was attempted and what was the result? 4. ... If black smoke is not seen during Step 2, proceed to Step 3. 3. Perform Onboard Filter Cleanliness Test (OBFCT) ... the test is running and can be replayed later for review. - Observe exhaust gas temperatures from DOC Outlet Temp, DOC Inlet Temp and DPF Outlet Temp.Mack MP8 regen issues. 2012 CXU613 with 2012 fault codes so it's not a 2013. Truck arrived at the shop at the beginning of the week. Soot load was level 5. performed a parked regen. DOC inlet temp was bias. DPF outlet temp stayed above inlet temp during regen.The peak temperature of type II regeneration was above 1100°C, as shown in the type B curve. From the rising trend of the curve in the figure, it could be seen that the sudden rise of regeneration temperature would have a large thermal impact on DPF, which could be observed even when the inlet regeneration temperature was normal.Engine Speed 1100 rpm (1275 rpm during first 12 minutes of regen then 1100 rpm for fuelmap ending in ZGS 999) Turbo Speed 45,000 – 60,000 (turbo is used to create pressure in the DD13 and DD15AT only) Fuel Cut Off Valve 100% (once DOC inlet temp reaches 536° F) Engine Torque Around 5% Actual Torque Load 15 – 18% (greater than 20% may ...

During active regeneration, the temperature of the exhaust gas must reach a certain level to burn off the particulate matter that has accumulated in the DPF. This temperature is typically around 600 to 700 degrees Celsius, or 1100 to 1300 Fahrenheit, which is much higher than the normal operating temperature of the engine. ...

The regen temps, at least to me, look good for a 2007 emission engine. How does the dpf diff. psi look during the regen? Was the 7th inj. cleaned and if so did you …

DOC temp looks good but the DPF temp is too low. ... Dd15 does not go past 370 degrees during regen , ... It is in regen zone 2. I started regen. Regen started. DOC inlet go to 750 and both others are around 750 as …This post show you the steps on how to solve Detroit EPA07 GHG14 engine regeneration DOC inlet temperature unable to ... Note : Complete steps in numerical order. If any of the items below have been previously inspected during this visit, do not ... SPN 3713/FMI 14 High Idle Regen (aborted) – Low Regen Temp; SPN 4077/FMI ALL ...After cleaning the doc it was reinstalled on the truck, reset doc/dpf counters. Performed manual stationary regen, the truck kicks up to 1200-1300 to start regen, the turbo speed starts at around 42k and turbo actuator 92%, egr valve position consistently stays at 0%, exhaust gas pressure about 140, intake manifold pressure about 12.5.The functionality of aftertreatment DOC and aftertreatment DPF can be regained using the Aftertreatment DPF. Stationary Regeneration Test that is performed using JPRO® or OEM Service Tool once either or both of the. components are exposed to coolant. During regeneration, the coolant evaporate out of both components due to Jun 22, 2022 · The ignition temperature of a diesel oxidation catalyst (DOC) and the internal temperature-field distribution of the diesel particulate filter (DPF) during active regeneration are investigated during an engine bench test in this study. Based on the dropped to idle (DTI) test, a test method is developed to determine the safe regeneration temperature of the DPF. The results show that when the ...

An increased pressure drop was also recorded across the DOC during active regeneration (ΔP C), which could be attributed to fouling of the catalyst inlet face by soot and/or coke species. No increased DOC pressure drop was seen during filter loading. Figure 16. Pressure drop and temperature during active regeneration (600°C)After cleaning the doc it was reinstalled on the truck, reset doc/dpf counters. Performed manual stationary regen, the truck kicks up to 1200-1300 to start regen, the turbo speed starts at around 42k and turbo actuator 92%, egr valve position consistently stays at 0%, exhaust gas pressure about 140, intake manifold pressure about 12.5.temperature from inlet temperature to outlet temp erature. The THC from post injection is assumed to be completely combusted inside the DOC (Chen, P . et al. (2014)).Joined: May 2015. 1 03-21-2017, 02:27 AM. Good evening, I have a maxxforce 13 that won't do a passive regen. I've have clean and replaced the doser, I have removed and had the doc and dpf. I have replaced the map. During. Park Regen temps get to 1200 or so. I've checked the tubes for differential pressure sensor and they are clean.Inspect the intake pressure/temperature sensor and wiring connector for signs of damaged, bent, spread, corroded or ... During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if directed at combustible materials. The vehicle must be parked outside. 3. Start the engine; using DiagnosticLink start the NOx Sensor ...

Jan 15, 2017 · During an active regen, engine exhaust temp is slightly higher than normal but not significantly. Maybe 50 to 100 deg. F at best. The high temps are in the exhaust NOX/DPF filter. Everything upstream of that is pretty much normal from my observations. See this video on an entire active regeneration. CM871 High DOC temp during regen. Hi everyone, I have regen issue with my 2009 Volvo with CM871. During Regen instead of DOC temp staying steady and DFP temps going up, this engine shows DPF outlet temp staying steady while DPF intake and DOC temps keep going up (1000+). I have this truck for 3 years and every forced regen i …

Volvo D13 regeneration. we have couple of trucks on our fleet with the same problem. The forced regen would start but runs indefinetly and not continuously. T he exhaust temp rises to about 500, dpf inlet and outlet reaches up to 920 and then engine suddenly changes tone, shuts of the aftertreatment injector, dpf inlet and outlet temps drop for ...Soot load was level 5. performed a parked regen. DOC inlet temp was bias. ... Mack MP8 regen issues. IROC Location Offline Posting Freak Reputation: 337. Thanks Given: 280 Thanks Received: 2922 (1051 Posts) Posts: 2,135 Threads: 155 Joined: Jul 2011 1 01-18-2020, 01:06 AM .The peak temperature of type II regeneration was above 1100°C, as shown in the type B curve. From the rising trend of the curve in the figure, it could be seen that the sudden rise of regeneration temperature would have a large thermal impact on DPF, which could be observed even when the inlet regeneration temperature was normal.Monitor temperature rise across DOC during regen. Little or no temperature ... 4 SPN 3242/FMI 2 This diagnostic condition is typically DOC Inlet Temperature ...Active regeneration is usually not noticeable to the driver. The vehicle needs to be driven at speeds above 30 mph for approximately 20 to 30 minutes to complete a full regeneration. During regeneration, the exhaust gases reach temperatures above 1,000°F (550°C). Active regeneration is usually not noticeable to the driver. Ash Loading The DPF system is a honeycomb filter, similar to a traditional catalytic converter, that captures and collects particulate soot. The 6.7 Cummins has had a DPF system since halfway through the 2007 model year. 2007.5-2012 models had a completely separate DPF system that sat behind the DOC system. In 2013+ models the DOC and …2018 volvo vnrRequred regen on dash does not Go awaySent filters out for cleaningInatlled back same thisOn regen doc temp stays at 600, dpf inlet 800 and dpf outler 470Put new 7th injector and 7th inj … read moreIf your psi sensor is cleared and your temps still don’t come up, you’ll need to pull the DPF’s back out and Blow or out the DOC’s. Remove the 1-box inlet and rig a good vacuum cleaner to or all that soot will settle in front of the DOC and plug at least part of them again!

This fault sets when the DOC inlet temperature does not reach a minimum of 270°C (518°F) during a regeneration. Monitored Parameter: DOC Inlet Temperature Typical Enabling: Conditions Engine running, regeneration active: Monitor Sequence None: Execution Frequency Always: Typical Duration None: Dash Lamps MIL, CEL: Engine Reaction None

DPF regeneration temperature rising strategy chiefly considers two temperatures including DOC inlet temperature and the DPF inlet temperature. Temperature rising approaches is based on Great Wall 4D83 diesel engine whose performance parameters are listed in Table 1 and DPF experiment system is shown in Fig. 8. Secondary post injection (Post ...

Monitor temperature rise across DOC during regen. Little<br /> or no temperature rise indicates DOC not active.<br /> Monitor DOC inlet temperature. No temperature change<br /> after engine startup indicates sensor problem.<br /> Listen for the ITV to sweep at key up.<br /> Turbo not functioning properly Perform a turbo …CM871 High DOC temp during regen. Hi everyone, I have regen issue with my 2009 Volvo with CM871. During Regen instead of DOC temp staying steady and DFP temps going up, this engine shows DPF outlet temp staying steady while DPF intake and DOC temps keep going up (1000+). I have this truck for 3 years and every forced regen i did was successful ...2018 volvo vnrRequred regen on dash does not Go awaySent filters out for cleaningInatlled back same thisOn regen doc temp stays at 600, dpf inlet 800 and dpf outler 470Put new 7th injector and 7th injector is spraying at 75 psiDid regen 3 times temps not going up…perform filter reset from texh tool and adaptive reset….after regen 3 times same issue still asking for regenDPF inlet temperature: 550°C; Soot load: 4.1 g/dm3. It should be noted that there was almost no NO2 generation over the DOC during active regeneration. This ...DOC not active. Monitor temperature rise across DOC during regen. Little or no temperature rise indicates DOC not active. DOC Inlet Temperature Sensor non-responsive. Monitor DOC inlet temperature. No temperature change after engine startup indicates sensor problem. Intake Throttle Valve not functioning properly. Listen for the ITV to sweep at ...Volvo D13 regeneration. we have couple of trucks on our fleet with the same problem. The forced regen would start but runs indefinetly and not continuously. T he exhaust temp rises to about 500, dpf inlet and outlet reaches up to 920 and then engine suddenly changes tone, shuts of the aftertreatment injector, dpf inlet and outlet temps drop for ...Jun 22, 2022 · The ignition temperature of a diesel oxidation catalyst (DOC) and the internal temperature-field distribution of the diesel particulate filter (DPF) during active regeneration are investigated during an engine bench test in this study. Based on the dropped to idle (DTI) test, a test method is developed to determine the safe regeneration temperature of the DPF. The results show that when the ... Refer to section "Removal of the EPA07 Temperature Sensors". Verify repair. 5. Monitor the DPF outlet pressure (pin 30) parameter. Is the DPF outlet pressure sensor voltage between 0.44 and 0.56 ... Remove the DOC inlet pressure sensor tube, hose and elbow. Refer to section "Removal of the EPA10 Diesel Oxidation Catalyst Inlet Pressure Sensor ...Start looking at it, doc temps run up to 700 degrees within the first 5 minutes but I never see any pressure kick up from the Hydrocarbon doser. By 10 minute mark all temperatures holding steady around the 400-500 mark. Checked intake/exhaust leaks, intake throttle valve, egr valve, ensure all items are were they should be during the regen process. Catalyst (DOC), a chemical reaction occurs, and the exhaust system temperature increases to a level that oxidizes the soot in the filter. W2005917 Aftertreatment Fuel Injector (AFI) The Discharge Recirculation Valve (DRV), mounted on the charge air cooler inlet pipe, increases exhaust system temperature by recirculating air back into the ...13. Inspect the DOC inlet pressure sensor electrical connector for corrosion and spread pins. a. If corrosion or damaged (or bent) pins are found, repair as necessary. Verify repairs. b. If no corrosion or damage is found, replace the DOC inlet pressure sensor. Refer to section "Removal of the GHG14 Diesel Oxidation Catalyst Inlet Temperature ...The influence of far post injection in cylinder or downstream injection in the exhaust pipe on the DOC inlet temperature can be negligible (Chen, P. et al. (2014 ... Kim, Y. W., Van Nieuwstadt, M., Stewart, G., & Pekar, J. . Model Predictive Control of DOC Temperature during DPF Regeneration, SAE Technical Paper, No. 2014-01 ...

Mar 15, 2020 · The stage1 is before regeneration phase. The DOC inlet temperature, the DPF inlet temperature, and the DPF outlet temperature are sequentially lowered due to the heat loss. The stage2 is during regeneration phase. The DOC inlet temperature slightly reduces due to the vaporization heat of methanol. Exhaust Gas Temperature 1 – DOC Inlet (Degrees Fahrenheit). Description. Gauge; TXD ... Time since Active Regen (Hours) · DEF Level (%) · DEF Temperature (°F) ...This guide will assist with diagnosing regen related codes and issues for GHG14 DD Engines. Engine Speed 1100 rpm (1275 rpm during first 12 minutes of regen …Instagram:https://instagram. cuestaswhat is blox fruits max levelkansas football coach salarycars for sale owner craigslist Apr 7, 2013 · 19 2 Jun 8, 2012 Santa Rosa, CA 0 Can anyone tell me where the temps should be at on an active regen? I keep getting code 1691 DOC below normal operating temp . I cleared code and did regen DOC maxed out at 561F I, inlet 1000+ and outlet 1000+. Is 561F on the DOC inlet right or should it be hotter? Im thinking my doser might be bad. Thanks kate spade new york staci medium satchelbatman 2022 iphone wallpaper Monitor smoke control status during regen. Smoke control status should be 0. DOC Inlet Temperature Sensor non-responsive Monitor DOC inlet temperature. No temperature change after engine startup indicates sensor problem. Intake Throttle Valve not functioning properly Listen for the ITV to sweep at key up. Turbo not functioning properly Perform ... ok state softball schedule 2023 Mar 15, 2020 · The stage1 is before regeneration phase. The DOC inlet temperature, the DPF inlet temperature, and the DPF outlet temperature are sequentially lowered due to the heat loss. The stage2 is during regeneration phase. The DOC inlet temperature slightly reduces due to the vaporization heat of methanol. 10. Perform a parked regeneration. 11. Once the parked regeneration is completed, review the DOC inlet pressure sensor reading in the log file. Does the DOC inlet pressure reading ever read zero during the parked regeneration?1. Yes; replace the DOC inlet pressure sensor. Refer to section "Removal of the Diesel Oxidation Catalyst Inlet Pressure ...Exhaust Gas Temperature 1 – DOC Inlet (℉) 07E02281F9; C462058136F9; 4010; 000900050020; EG1; 4.22 Required; Usage Notes. If this XGauge reads 32 °F try …