Doc inlet temp during regen.

WIL2800030 DOC Damage as a Result of Improper Cleaning Aftertreatment for Drivers Document # Title IK1900158 2010 Dash Cluster Lamp Operation with new DPF Lamp Locations , Functions and Regeneration Instructions TSI 08-10-02 In-Cab Regeneration Visor Decals in English/French/Spanish (2007 Emissions) See FAQ's below9. 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 InletMy unit starts the regen but the DOC inlet temp is only getting to 420 degrees and is not allowing to burn off for the regen. I'm getting codes 4752, (intake manifold pressure sensor) 3719, 3711. ... Vehicle fails to regen. During High idle regen, DOC outlet max 479 F , Command boost pressure 0%, fuel doser inject ...Apr 7, 2013 · A) A forced regen will take approximately 40 minutes. It will cycle through 6 stages during this 40 minute period. If the Regen cycle takes longer than this, something else is still wrong. b) During a forced regen cycle, The DOC will get to about 550F, and the doser will activate, first, usually in short intervals, then come on solid. 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 ...

8 10-28-2017, 06:39 AM. Your permanent code 155:4 should be an EGRDP sensor low fault according to what I'm looking at. I've seen 2631 and severe derates also due to failed/biased EGRDP sensors/wiring and more commonly plugged EGRDP ports/tubes. Drag test the EGRDP sensor connector pins and make sure they arn't spread.The results showed that engine-out NOₓ emissions were positively correlated with vehicle specific power (VSP). The average NOₓ reductions (deNOₓ) of the SCR were 82.8%, 91.7%, and 85.5% for ...Face plugging is an extreme buildup of carbon on the inlet side of your DOC (Diesel Oxidation Catalyst). This extreme buildup causes additional exhaust backpressure and restricts exhaust flow, which hinders the performance of the DPF and SCR downstream. While the face plugging can be caused by a few different mechanical problems, the most ...

7. Start the engine and run a Parked Regen. Monitor DOC inlet pressure and engine speed during the regen. Compare your DOC inlet pressure reading to the screen shots below to identify a possible cause of the fault code. a. If the DOC inlet pressure starts out high above 10 kPa (1.45 psi) and decreases during the parked regen, this

Verification Parked Regen 1. Disconnect the DPF outlet pressure sensor tube. 2. ... During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if ... (DOC) Inlet Pressure - Not Plausible. Table 2. SPN 3251/FMI 20 Description DOC Inlet Pressure Sensor ...If the system doesn't reach this then something is wrong with engine, not the DOC or injector. If the temps reach 525 or better and the inlet temp to the DPF stalls around 800 or is very very slow to reach 1000+ then something is wrong with the injector or DOC. Monitor these parameters during a regen, and you should have these values;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 …Yes; Go to step 14. b. No; Refer to section "Unable to Start a Parked Regeneration". 14. Using DiagnosticLink, monitor DOC inlet temperature. Does the ...

Nov 7, 2014 · Here's the "normal" values for all of the Aftertreatment Parameters during a Parked Regen. *Note* On a DD13, there are 3 important parameters that will have higher values than the DD15 or DD16. -Turbo Speed 38,000-42,000 rpm. -SCR Inlet NOx Sensor 400-500 ppm. -Actual DEF Dosing Quantity 900-1100 g/h.

During vehicle operation, active regeneration is performed when the accumulated soot and ash reach boundary limits. In this operation, the particulate soot is ...

The catalyst should also exhibit low light-off temperature, to enable active regeneration during periods of operation with lower engine load. Figure 4 illustrates the light-off performance with post injection of fuel and exhaust injection of fuel for a fresh and aged DOC. The x-axis represents the inlet temperature of the DOC.CM871 High DOC temp during regen - tariqzai - 04-12-2020. 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 ...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 ...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 .Verification Parked Regen 1. Disconnect the DPF outlet pressure sensor tube. 2. ... During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if ... (DOC) Inlet Pressure - Not Plausible. Table 2. SPN 3251/FMI 20 Description DOC Inlet Pressure Sensor ...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: 2910 (1046 Posts) Posts: 2,126 Threads: 155 Joined: Jul 2011 1 01-18-2020, 01:06 AM .Symptoms of a clogged DPF filter are excessive regens and long regens, last ing 60 minutes or longer. You can monitor temperatures/pressures when doing a forced regen to make sure everything is in range and working properly. Faulty …

Once the DOC is heated up, it can produce high-efficiency oxidization of the post-injected fuel for the DPF regeneration. Based on the DOC light-off temperature achieved, the in-cylinder post fuel injection along with further modulation of the air system parameters can be used to reach a sufficiently high inlet gas temperature for the DPF ...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. ... Refer to section "Removal of the Intake Pressure/Temperature Sensor". Verify repairs. 11. Visually inspect exhaust system for leaks or damage, including manifold, gaskets ...Typically, outlet temp should stay around 50F below inlet temp. If DPF outlet temp stays above the inlet temp then the DOC isn't working probably. Likely face plugged and allows a rich fuel mixture to burn inside DPF instead of DOC. DPF temp should be in the 1000-1100F range. If DPF temp reaches around 1300F, regen will shut down to prevent damage.The Intake Throttle Valve (ITV) is installed on the air intake between the air filter housing and the Exhaust Gas Recirculation (EGR) mixer. The ITV is used to control the air/fuel mixture during a Regen process of the Aftertreatment system. The ITV is common for all medium duty MaxxForce engines. Exhaust Gas Temperature (EGT) Sensor 7. Start the engine and run a Parked Regen. Monitor DOC inlet pressure and engine speed during the regen. Compare your DOC inlet pressure reading to the screen shots below to identify a possible cause of the fault code. a. If the DOC inlet pressure starts out high above 10 kPa (1.45 psi) and decreases during the parked regen, thisThank you for input again, however, i forgot to mention at the very beginning that turbo speed at 58,000 - 60,000 rpm which mean in the boost rate, but DOC and DPF at 350, 400 and 430 degree after 30 minute of regen, but after i detect CAC leak on both side, i replaced CAC and turbo speed back to normal around 42,000-43,000 rpm.Tractor was towed in with engine warnings on, and in shutdown mode.Active faults for soot level high, and failed regen. due to temp. Inlet DOC temp only at 425, wont go high enough to start dosing fuel. Intake throttle valve is working. Will continue on diag tomorrow. Any thoughts? Thanks.

... inlet temperature sensor. Source: Cummins Quickserve. 2009 Cummins ISL Air Intake Overview ... DOC w/ DPF Emissions Control Systems Service. Exhaust, Intake and ...If the system doesn't reach this then something is wrong with engine, not the DOC or injector. If the temps reach 525 or better and the inlet temp to the DPF stalls around 800 or is very very slow to reach 1000+ then something is wrong with the injector or DOC. Monitor these parameters during a regen, and you should have these values;

Save. ClickClick5 · #9 · Aug 7, 2015. EGT3 is the one you will want to watch for the regen. This is the post DPF temp probe. EGT2 is post DOC, and EGT1 is pre DOC. Normal driving, EGT3 will reach around 500-800F. You will know …7. Start the engine and run a Parked Regen. Monitor DOC inlet pressure and engine speed during the regen. Compare your DOC inlet pressure reading to the screen shots below to identify a possible cause of the fault code. a. If the DOC inlet pressure starts out high above 10 kPa (1.45 psi) and decreases during the parked regen, this If the DOC inlet pressure starts out high above 10 kPa (1.45 psi) and decreases during the parked regen., this indicates the DPFs were plugged and the parked regen cleared them. If the DOC inlet pressure starts above 6 kPa (GHG14, 0.8 psi), and stays high, the DOC is considered plugged.02/02/2018 - Added temp differential test in step 2 01/03/2018 - Due to Cummins software changes, removed ROA test (previously step 2) DESCRIPTION This document will guide the user through resolving frequent regen issues on vehicles equipped with an ISB 6.7. SYMPTOM(s) Diagnostic Trouble Code(s) & Dashboard Indicator …Still not temp. Have fault traced with G/D. Replaced egr valve. checked diff sensor,tubes,vgt lever,boost leaks,fuel pressure to A/T fuel doser and made sure it wasn't plugged. During regen the exh temps are (inlet 739) (after cat 969-978) (outlet 877-904) It goes back to idle and soot level reads the same and only code active is for soot level.Oct 26, 2018 · 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 ...

Oct 6, 2023 · How to spot a failed DOC.You can tell by watching your temperatures during a regen. If your DPF intake is lower then your DPF outlet, and theyre both above 8...

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.

Aug 7, 2019 · Blew out the DOCs during regen I have DPF inlet- 0.363 DPF outlet- 0.072 DOC inlet temp-813 DOC outlet temp-779 Fuel doser-0.0% Fuel cutoff valve- 0.0% Baro-14.43 Got a 2018 Mack MRU with an MP7. Truck has had regen issues since we got it new, been to the dealership multiple times but Mack says they can’t duplicate the issues. Active codes as of right now. P103C00 P20EE00 P046C64 P24F700. Truck is in derate requesting a Sulfur regen. During the regen the Nox inlet is at 1026 PPM and outlet is 1773 PPM.Oct 27, 2017 · 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 ... Good morning Roy, I replace the SCR Outlet Temp Sensor yesterday ran a regen and it went on forever, had to sop it after one hour. The Temps slowly build up, these are the readings after about 1 hour DOC inlet-747 DOC Oultet 1010 DPF Outlet 1092 SCR inlet 1028 SCR Outlet 1045 What do yuo recommend next Still showing same codes SCR NOX ...WARNING!!: ⚠️⚠️⚠️Always use the proper tools and safety equipment to perform this job. Failure to perform the job correctly can result in personal injury or ...During a proper regen, DOC inlet temp, or temp #1, should be about 550-600. DOC outlet temp, or temp #2, should be 1000-1200 degrees. DPF outlet temp should be 950 to 1200. In a healthy system, the engine injects fuel into the exhaust during a regen that the DOC burns to create the heat. The heat is used to BAKE down the collected soot in the DPF.NOTE: Normal DOC pressure is less than 10 kPa (1.5 psi) for a 1-Box™ emissions package and 13 kPa (1.9 psi) for a Two-Box option. 28. Using DiagnosticLink, monitor DOC inlet pressure while performing a parked regeneration. Refer to section "Performing a Parked Regeneration - GHG17". Does the DOC inlet pressure start out high and stay high? a.Cummins ISX, ESN 79461593. DOC temp not getting above 410F during forced regen. DPF in and out teml hold at 408F. EGR closed, turbo actuator 80% closed, EGR diff pressure 0.015inHg, exhaust pressure 1 … read moreDuring 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. 11. Perform High Idle Regeneration. 12. When regeneration is complete, clear all fault codes. 13. Road test the vehicle. a. If no fault codes appear, testing is complete. Verify ...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 …

ASL: DOC Inlet Temperature ASL: DOC Outlet Temperature ASL: ASL: SCR Outlet Temperature ASL: SCR Inlet NOX Sensor After-treatment Outlet NOX ASL: Nox conversion AAS: Fuel Doser In'ection Status ASL: Exgas mass rate 'd Connections (paused} Device LMCM21J MCM21T MCM21T CPC04T MCM21T MCM21T MCM21T ACM21T ACM21T ACM21T ACM21T ACM21T MCM21T ACM21TAfter DOC reaches operating temperature and stabilizes (see callout 2, graph 8), verify DOCOT and DPFOT signal values are greater than 900°F (482°C). In this graph, DOCOT and DPFOT are less than 900°F (482°C). 2. Verify Diesel Oxidation Catalyst Inlet Temperature (DOCIT) signal value is between 550°F (287°C) to 800°F (427°C).a Diesel Oxidation Catalyst (DOC). Together, those products are effective at removing 99 percent of PM soot from the exhaust system using wall-flow substrates. As soot accumulates in the filter, a regeneration event will provide sufficient heat to oxidize the captured soot. The remaining ash is removed during regularly scheduled cleaningInstagram:https://instagram. used slide in campersmap of ks countiesmurrells inlet tide chart 2023forhonor reddit During testing, temperature of exhaust gas can become 1500°F (800 °C) and the temperature of exhaust system surface can cross 1300°F (700°C). These temperatures are hot enough for igniting or melting common materials, and can also lead to serious personal injury. Even after the vehicle has stopped moving,DOC and DPF inlet were shooting up as if in regen. Temps were indicative of active regen 1100°F to 1300°F in less than a minute vs slow increase during regen. … clustering should focus onhow to a survey 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 LoadingAlso, is the DOC and DPF due for cleaning? It sounds like you have access to Insite. When running a regen you need to open up data monitor and watch all the … ausitn reaves Tractor was towed in with engine warnings on, and in shutdown mode.Active faults for soot level high, and failed regen. due to temp. Inlet DOC temp only at 425, wont go high enough to start dosing fuel. Intake throttle valve is working. Will continue on diag tomorrow. Any thoughts? Thanks.OUT 1112 DPF OUT 1121 TROTTLE AT 76 DOC INLET PRESSURE .95 DPF OUT PRESS .30 FUEL DOSER 16.8 SRC INLET TEMP 1015 SRC OUT TEMP 994 THIS WITH DEF HOOKED UP CONVERSION ... Also, if its showing vehicle speed at any point during the regen(I have seen this before even though it was parked), it will kick it out or …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 ...