Cummins 1866 code

Posts: 757 Threads: 41. Joined: Jan 2012. 2 07-05-2017, 10:46 PM. (07-05-2017, 10:44 PM)TruckNet Wrote: Hello, I have a truck with CM2250 delete it but after some months is reporting a fault code: 1866 Exhaust Gas Recirculation Differential Pressure: Data erratic, Intermitent or Incorrect.

disconnect switches can interrupt the DEF system power down and purge sequence, logging Fault Code 5867. Verification If unit is equipped with a battery disconnect switch; clear fault codes, turn key to OFF position for two minutes, turn key to ON position and see if Fault Code 5867 returns. You will get a code that the actuator can not find the home position on key turn on. Easy to clean, just a little time. This info relates to a ISB 6.7 Cummins 2008 Fleetwood. All this work is very easy, and very few tools. A few new gaskets and away you go. These parts are all on the top of the engine.Cummins ISC 8.3 Fault Codes. Fault Code 111. Electronic Control Module Critical Internal Failure. Bad Intelligent Device or Component. Fault Code 115. Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect. Fault Code 122. Soot or Ice Deposits in the Intake Air Connection and Fault Codes: 1866, 3361, 3382, 3383, 3389, 7232, 7233 and/or 4729 Warranty Statement The information in this document has no effect on present warranty coverage or repair practices, nor does it authorize TRP or Campaign actions. Contents Product Affected B6.7 CM2350 B121B B6.7 CM2450 B155BCheck engine code 1866. 03-18-2019, (Subject: Check engine code 1866 ) Post: #1. vasyok8585 Established (1 Likes) ... I need some help, I have some issues with cummins isx 15 CM2350, few months ago got check engine light, code 1866( differential pressure sensor),replaced egr differential pressure sensor, imap sensor, back pressure sensor, egr ...Perform the reset all for the aftertreatment in Cummins Insite and make sure to follow below to clear code. The engine must be running at 1200 RPM or above for 15 minutes and the aftertreatment diesel oxidation catalyst inlet temperature must be above 150°C [302°F] before the fault code will clear• Verify that the fault code is no longer active. • Check ECM Calibration Revision History • Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revision number in the ECM. • Compare the ECM code and revision number in the ECM to the calibration revisions listed in the ECM Calibration

1/28/2020 Incorrect Pressure/Temperature Sensor: Fault Code 125, 222, 2191, 2973, 1664 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190091.html 3/ 4Save. rtole99 · #8 · Jul 26, 2016. I saw a good article on a test for the effectiveness for cleaning the EGR with different solutions (MOPAR, Simple Green, Purple) We bench-test diesel EGR Cooler cleaning solutions. …The SPN 5397 FMI 31 fault code is defined as Aftertreatment 1 Diesel Particulate Filter Regeneration too Frequent- Condition Exists. ... The equivalent Cummins code number is 3375 and it is the last code on …Cummins ISL9 CM2350 (2013-2017) Fault Codes. April 28, 2018 ~ Admin. The Cummins ISL9 is used by medium duty trucks, RVs, motorhomes, fire trucks, emergency vehicles, and much more. It has the highest power density of any engine in its class, with horsepower ratings from 260 to 380. This engine was also commonly called …fault code -- Cummins - Read online for free. Muestra los codigos de falla de motor Cummins. Muestra los codigos de falla de motor Cummins. Open navigation menu. ... (Solid) Range - Moderately Severe Level Warning 1866 411 2 (Solid) Exhaust Gas Recirculation Differential Pressure - Data erratic, Warning 1893 2791 9 ...Disclaimer: Rates given above are updated up to the GST (Rate) notification no. 05/2020 dated 16th October 2020 to the best of our information. We have sourced the HSN code information from the master codes published on the NIC's GST e-Invoice system. There may be variations due to updates by the government. Kindly note that we …Diagnostic Fault Codes For Cummins Engines Applies to Engine Models QSB T2, QSC T2, QSL T2, QSM11, QSX15, QSK19, QSK23, QST30, QSK45/60/78 Note: These fault …Jan 4, 2019 · 2008 ford f650 vin# ***** cummins engine serial # 46788486, service engine soon light is on and will not clear, I am getting an active code: 1866 egr valve delta pressure- data erratic,intermittent, o … read more

Fault Codes CUMMINS ISB ISC ISL ISBe ISDe and QSB3.3 CM2150 (168) Fault Codes CUMMINS GTA38 K38 K50 QSK38 QSK50/60 CM850 (97) Fault Codes CUMMINS Signature ISX QSX15 CM570 (94) Diesel Engine Software (90) Caterpillar Electronic Technician (87) Fault Codes CUMMINS ISB ISBe QSB4.5 QSB5.9 QSB6.7 …Cummins CM2250 Delete Fault code 1866. Jon1565 Location Offline V.I.P Reputation: 1,058. Thanks Given: 1934 Thanks ... 10:44 PM) TruckNet Wrote: Hello, I have a truck with CM2250 delete it but after some months is reporting a fault code: 1866 Exhaust Gas Recirculation Differential Pressure: Data erratic, Intermitent or Incorrect. Anyone …Cummins CM2250 Delete Fault code 1866 Thread Rating: 11 Vote (s) - 3.55 Average 1 2 3 4 5 Pages (2): 1 2 Cummins CM2250 Delete Fault code 1866 TruckNet Location Offline Junior Member Reputation: 505 Thanks Given: 254 Thanks Received: 786 (18 Posts) Posts: 90 Threads: 33 Joined: Nov 2016 1 07-05-2017, 10:44 PM Hello,Prevent Fault Code 1246 from Reoccurring. The fault code 1246 is related to the functioning of the engine and engine’s sensors. Thus preventing this situation from ever arising means following all of the recommended procedures for maintenance and operating your backup power generator. Regularly checking the coolant and oil levels, removing ...If fault code 1922 is still active OR inactive with more than one counts in the last 25 operating hours, the DPF is fully clogged. Replace the DPF. Step 9: This step will only work if you use Cummins Insite (version 8.5.2 or later) or an equivalent diagnostic tool which supports the test described below.

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2015 Freightliner M2 112. 180k miles on her. This truck already had the EGR Cooler replace 2 years ago. Maybe around 120k miles or so. Before I worked for the company.Jan 4, 2012 · The Cummins EGR engines aren't as bad as people make them out to be. There have been a lot of updates to the software / hardware of the engine to make them more reliable. They were prone to EGR valve problems in their earlier days. The first code is probably caused by plugged EGR diff pressure sensor tubes or a failed sensor. Sometimes an EGR ... Turn the. keyswitch OFF for 20 seconds and then turn the keyswitch ON and read the fault codes. If. Fault Code 1896 is active, this indicates the EGR valve is stuck in the open position. The fault code will only become inactive if the initial key ON EGR position check passes. this fault code troubleshooting tree.Cummins Inc., an engine, power generation and filtration products manufacturer, is a public company owned by shareholders. Shares in Cummins Inc. are listed on the New York Stock Exchange under the ticker symbol CMI.Follow the “Conditions For Clearing The Fault Code” section in corresponding fault code overview to validate the repair. Verify fault code is no longer active. If fault code is still active, reference the corresponding fault code troubleshooting tree. Document History L a s t M o d i f i e d : 0 9 - J u n - 2 0 2 0 Date Details

Posts: 757 Threads: 41. Joined: Jan 2012. 2 07-05-2017, 10:46 PM. (07-05-2017, 10:44 PM)TruckNet Wrote: Hello, I have a truck with CM2250 delete it but after some months is reporting a fault code: 1866 Exhaust Gas Recirculation Differential Pressure: Data erratic, Intermitent or Incorrect.Dec 8, 2020 · 2012 peterbilt isx12 code 3714 derate code and 1866 EGR diff…. i found it. two ports that come down at an angle. Pin 1 shoukd have about 5 volts. Pin 2 is a return/ground to the ECM. Pin 3 is the signal from the sensor back to the ECM.If you run the engine and play with the throttle to allow the EGR valve to open what readings do you get on ... Dec 8, 2011 · Cummins ISX Codes 1700-1900 1843 Crankcase Pressure Circuit - Voltage Above Normal, or Shorted to High Source 1844 Crankcase Pressure Circuit - Voltage Below Normal, or Shorted to Low Source 1866 Exhaust Gas Recirculation Valve Delta Pressure - Data Erratic, Intermittent, or Incorrect 2010 Freightliner m2 106 6.7 cummins 1 Active code code 1921 sid 324, 0, 16, spn 3251 Had a egr valve issue replaced it with temp press next to it. Checked dpf ass load said full. doc face plugged and … read moreFault Code: 1866 | SPN: 411 | FMI: 2 Exhaust Gas Recirculation Differential Pressure - Data Erratic, Intermittent, or Incorrect ... • Use the recommended Cummins® electronic service tool or equivalent to read the fault codes. • Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revisionMore Cummins Fault Codes. Cummins ISL 8.9 Fault Codes. Fault Code 111 Electronic Control Module Critical Internal Failure. Bad Intelligent Device or Component. ... Fault Code 1866 Exhaust Gas Recirculation Valve Delta Pressure – Data …Nov 29, 2020 · • Connect the recommended Cummins® electronic service tool or equivalent. Action • Use the recommended Cummins® electronic service tool or equivalent to read the fault codes. Specification Before troubleshooting this fault code, troubleshoot any fault code that is active or has more than one inactive count The N14 Cummins is a diesel engine manufactured by the American company Cummins. The N14 was an engine that had a lot of different uses, from powering trucks and mining equipment to motor homes and generators. The versatility of the N14 con...

2016 International with Cummins ISB 6.7 engine: Codes 1866, 3382, 4616. Cleaned DPF filter, replaced EGR valve, replaced EGR differential sensor. Found a small air leak due to a gasket being cracked b … read more

Complete overview of the Cummins ISB 6.7L engine. Includes fault codes, diagnostic information, and more. ... Fault Code 1866 ... Code 1876 Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Above Normal or Shorted to High Source. Fault Code 1877 Aftertreatment Exhaust gas Temperature 3 Circuit ...Active or multiple inactive counts of Fault Codes: 1866, 3361, 3382, 3383, 3389, 7233 and/or 4729 Root Cause: Soot deposits in the intake air connection exhaust gas entrance ports are present and have af fected EGR flow measurements.Posts: 757 Threads: 41. Joined: Jan 2012. 2 07-05-2017, 10:46 PM. (07-05-2017, 10:44 PM)TruckNet Wrote: Hello, I have a truck with CM2250 delete it but after some months is reporting a fault code: 1866 Exhaust Gas Recirculation Differential Pressure: Data erratic, Intermitent or Incorrect.Cummins fault code 1922 becomes active when the soot load of the Diesel Particulate Filter (DPF) has exceeded the recommended limits. To protect the engine, the ECM activates the power derate. ... EGR differential pressure faults: 1866, 2273, 2274. When you troubleshoot any possible active fault codes from the list above, proceed to …Fault Information System (FIS) is a downloadable version of the fault code troubleshooting manual. It provides information about fault codes, procedure numbers to perform repairs, …Cummins ISX15 CM2250 (2010-12) Fault Code: 1866 PID: 411 SPN: 411 FMI: 2 Exhaust Gas Recirculation Valve Delta Pressure- Data Erratic, Intermittent, or Incorrect Circuit Description The EGR differential pressure sensor has two ports that sense exhaust pressure.CM850 and Cummins ECM. The calibration upgrade will clear the fault code and the ineffective regeneration count locking the turbo to 50%. 3. Clean the aftertreatment injector as indicated in Cummins® procedure 011-042. 4. Perform a flow and leak test on the aftertreatment injector as per Cummins® procedure 011-054. 5. Perform a stationary regen.CODE 1866, PID 4, FMI 2 SPN 411 CLEANED OUT DIFF PRESSURE PORTS, REPLACE DIFF Medium and Heavy Trucks Ask an Expert Car Questions Truck Repair This answer was rated: ★★★★★ 10 FREIGHTLINER M2 106 6.7 CUMMINS. CODE 1866, PID 4, FMI 2… , Mechanic cumminsdr, Mechanic 4,538 Satisfied Customers All types of Cummins applications cumminsdr is online nowI need some help, I have some issues with cummins isx 15 CM2350, few months ago got check engine light, code 1866 ( differential pressure sensor),replaced egr differential pressure sensor, imap sensor, back pressure sensor, egr temperature sensor, code back on. But.... code is completely gone when outside is cold , when outside is …

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• Verify that the fault code is no longer active. • Check ECM Calibration Revision History • Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revision number in the ECM. • Compare the ECM code and revision number in the ECM to the calibration revisions listed in the ECM Calibration• Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revision number in the ECM. • Compare the ECM code and revision number in the ECM to the calibration revisions listed in the ECM Calibration Revision History Database for applicable changes related to this fault code.2008 ford f650 vin# ***** cummins engine serial # 46788486, service engine soon light is on and will not clear, I am getting an active code: 1866 egr valve delta pressure- data erratic,intermittent, o … read moreB.Riley Financial analyst Zach Cummins maintained a Hold rating on Liveperson (LPSN – Research Report) today and set a price target of $5.... B.Riley Financial analyst Zach Cummins maintained a Hold rating on Liveperson (LPSN – Resear...SETUP A CUMMINS QUICKSERVE ONLINE ACCOUNT FOR FREE AND FILTER ALL INFORMATION TO BE RELEVANT TO YOUR ENGINE.2009 Sterling Acterra with Cummins ISC300 and CM2150D is reading negative EGR diff. pressure, which triggers code 1866 EGR diff. pressure data erratic. New sensor was installed and 3 sensor wires checked, all look OK.If this value is outside of a specified range, Fault Code 1866 is set active. Possible causes of this fault code include: • A damaged EGR differential pressure sensor. • High resistance in the wiring harness on the signal or return wire. • Plugged or restricted EGR differential pressure sensor flow ports. Refer to Troubleshooting Fault ...Here are all the ISL and ISC codes available for the Cummins ECM. These Cummins trouble codes pertain to both models equipped with the High Pressure Common Rail (HPCR) fuel system. ISL & ISC Codes 0-100. 0001 Exhaust Gas Pressure Sensor Number 1 Circuit - Voltage Above Normal, or Shorted to High Source. 0002 Exhaust Gas Pressure Sensor Number 1 ... ….

• The fault code status displayed by the recommended Cummins electronic service tool or equivalent will change to INACTIVE immediately after the diagnostic runs and passes. • The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.SETUP A CUMMINS QUICKSERVE ONLINE ACCOUNT FOR FREE AND FILTER ALL INFORMATION TO BE RELEVANT TO YOUR ENGINE.Adventure photographer Savannah Cummins lives much of her life on the road. Having a bit of comfort translates into better work, as well as a stronger progression as a climber. Join Sav and friends on a classic climbing shoot in the beautif...Feb 16, 2022 · if you want to solve 0559 fault code in cummins engine then you need to check fuel line. 0559 means fuel line restriction or fuel internal leakage in fuel li... • Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revision number in the ECM. • Compare the ECM code and revision number in the ECM to the calibration revisions listed in the ECM Calibration Revision History Database for applicable changes related to this fault code.Cummins Fault Code 3582 is becomes active if the SCR System performance is low. Luckily, Cummins Insite, TEXA and a few other equivalent tools, will allow you to start an “Aftertreatment SCR Performance test”. SCR Performance Test – Cummins Insite. This test runs for 60 to 80 minutes and is really noisy, so be prepared …Active or multiple inactive counts of Fault Codes: 1866, 3361, 3382, 3383, 3389, 7233 and/or 4729 Root Cause: Soot deposits in the intake air connection exhaust gas entrance ports are present and have af fected EGR flow measurements. Cummins Fault Codes for Engine ... ECM module detects the presence of water in the fuel for a long time. Fault code 1866. Engine: ISB, ISC ISL, ISLe, ISDe, QSB Cummins 1866 code, Fault Code: 1866 | SPN: 411 | FMI: 2 Exhaust Gas Recirculation Differential Pressure - Data Erratic, Intermittent, or Incorrect ... • Use the recommended Cummins® electronic service tool or equivalent to read the fault codes. • Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revision, This check is only performed at keyswitch OFF, during the ECM powerdown. During this diagnostic check, the ECM monitors the value of the EGR differential pressure sensor. If this value is outside of a specified range, Fault Code 1866 is set active. Possible causes: 1)A damaged EGR differential pressure sensor, If this value is outside of a specified range, Fault Code 1866 is set active. Possible causes of this fault code include: A damaged EGR differential pressure sensor. …, Cummins ISX15 CM2250 (2010-12) Fault Code: 1866 PID: 411 SPN: 411 FMI: 2 Exhaust Gas Recirculation Valve Delta Pressure- Data Erratic, Intermittent, or Incorrect. ... If this value is outside of a specified range, Fault Code 1866 is set active. Possible causes of this fault code include:, Cummins Fault Codes list for QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30, QSK45, QSK60, QSK78 engines. To determine the malfunction, you just need to write out the fault code from the device in the cab and find the codes in the table by selecting your own engine type. High air temperature in inlet manifold (rear sensor, left …, SETUP A CUMMINS QUICKSERVE ONLINE ACCOUNT FOR FREE AND FILTER ALL INFORMATION TO BE RELEVANT TO YOUR ENGINE., Cummins ISX15 Electrical System Equipment Technical Service Bulletins TSB Number: TSB210154 NHTSA Number: 10241821 TSB Date: August 22, 2023 Date Added to File: ... This in-shop campaign is being issued to address sensor related fault codes 1866, 3383 and 3228 on certain isx15 engines installed in kenworth t680 and t880 …, This technical service bulletin provides the information regarding proper troubleshooing of fault codes 2724 and 2725. This is a revision to a previous communication. TSB Number: T1693 NHTSA Number: 10090126 TSB Date: August 11, 2015 Date Added to File: February 1, 2017 Failing Component: Engine (Pws) Summary:, Sep 1, 2021 · Note: This fault code indicates that the aftertreatment diesel particulate filter requires maintenance by performing a stationary regeneration procedure. This is a maintenance procedure only and is not covered by Cummins® warranty. Note: Repeated occurrences of this fault code may indicate the engine requires frequent regeneration. Refer to , 2015 Freightliner M2 112. 180k miles on her. This truck already had the EGR Cooler replace 2 years ago. Maybe around 120k miles or so. Before I worked for the company., Just select your engine to see descriptions of each fault code for your particular Cummins ECM. ISB Codes - Truck Application (Non - Dodge / Chrysler) ISB Codes - Dodge Cummins Applications. ISC & ISL Fault Codes- CAPS Fuel System (before 2003) ISC & ISL Fault Codes- HPCR Fuel System (2003 and later) ISM Codes - Engines before 2002 (no EGR ... , I got a Bully Bog screen to go with the PPEI and it won't erase the codes. See below. P02E3 Unknown DTC. P0111 Intake Air Temp Sensor circuit 1. P0502 Vehicle Speed Sensor A cicruit low. P2001 NOX Trap Efficiency. C1805 Unknown. Any help would be appreciated!! Thanks guys., 2009 Sterling Acterra with Cummins ISC300 and CM2150D is reading negative EGR diff. pressure, which triggers code 1866 EGR diff. pressure data erratic. New sensor was installed and 3 sensor wires checked, all look OK. , Jan 14, 2021 · Cummins engines common cause of EGR system fault codes. , Cummins ISX15 CM2250 (2010-12) Fault Code: 3748 PID: SPN: 3216 FMI: 20 Aftertreatment Intake Nox Sensor- Data Not Rational- Drifted High Circuit Description The aftertreatment intake NOx sensor is a smart device that receives commands from the engine control module (ECM) via the J1939 data link. , File: 655-t06-1866 Page 1 of 5 ISX12/ISX11.9 CM2250 Fault Code: 1866 | SPN: 411 | FMI: 2 ... • Use the recommended Cummins® electronic service tool or equivalent to read the fault codes. • Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revision, Aug 16, 2018 · Fault Codes CUMMINS ISB ISC ISL ISBe ISDe and QSB3.3 CM2150 (168) Fault Codes CUMMINS GTA38 K38 K50 QSK38 QSK50/60 CM850 (97) Fault Codes CUMMINS Signature ISX QSX15 CM570 (94) Diesel Engine Software (90) Caterpillar Electronic Technician (87) Fault Codes CUMMINS ISB ISBe QSB4.5 QSB5.9 QSB6.7 ISC QSC8.3 ISL ISLe QSL9 CM850 (CM2850) (52) , Check engine code 1866 - vasyok8585 - 03-18-2019 Hi guys, I need some help, I have some issues with cummins isx 15 CM2350, few months ago got check engine light, code 1866( differential pressure sensor),replaced egr differential pressure sensor, imap sensor, back pressure sensor, egr temperature sensor, code back on., The Cummins 6.7L ISB EGR Cooler from Bullet Proof Diesel features the latest, patented EGR technology. This new interior tube design makes the internal structure more forgiving, and thus allows this EGR Cooler to survive through heating/cooling cycles as well as thermal events long after most EGR coolers fail. Upgraded replacement for these OEM ..., Refer to Cummins QuickServe® to confirm latest Cummins ECM calibration available for the engine serial number (ESN). Insure the latest applicable Cummins ECM calibration is installed. Also confirm and complete any applicable Cummins campaigns or technical service bulletins, that address the active fault code(s)., Some Cummins engine fault codes include 111, which indicates an internal engine control unit failure; 214, which indicates that the engine’s oil temperature is too high; and 434, which indicates that power was lost while the ignition was of..., Dec 8, 2020 · 2012 peterbilt isx12 code 3714 derate code and 1866 EGR diff…. i found it. two ports that come down at an angle. Pin 1 shoukd have about 5 volts. Pin 2 is a return/ground to the ECM. Pin 3 is the signal from the sensor back to the ECM.If you run the engine and play with the throttle to allow the EGR valve to open what readings do you get on ... , Nov 14, 2018 · I got a Bully Bog screen to go with the PPEI and it won't erase the codes. See below. P02E3 Unknown DTC. P0111 Intake Air Temp Sensor circuit 1. P0502 Vehicle Speed Sensor A cicruit low. P2001 NOX Trap Efficiency. C1805 Unknown. Any help would be appreciated!! Thanks guys. , The P226C code on the 6.7 Cummins is due to the variable geometry turbocharger’s actuator not being where the powertrain control module wants it to be. This results in insufficient or excessive air pumped into the engine, causing performance issues. This article will explain the mechanisms within the turbocharger that cause the position ..., 2016 International with Cummins ISB 6.7 engine: Codes 1866, 2016 International with Cummins ISB 6.7 engine: Codes 1866, 3382, 4616. Cleaned DPF filter, replaced EGR valve, replaced EGR differential sensor. Found a small air leak due to a gasket being cracked b ..., Technical documents on QuickServe. Access QuickServe Online to get information specific to your Cummins engine, including: your owner's manual, the parts catalog for your …, 2008 ford f650 vin# ***** cummins engine serial # 46788486, service engine soon light is on and will not clear, I am getting an active code: 1866 egr valve delta pressure- data erratic,intermittent, o … read more, Cummins CM2250 Delete Fault code 1866 Thread Rating: 11 Vote (s) - 3.55 Average 1 2 3 4 5 Pages (2): 1 2 Cummins CM2250 Delete Fault code 1866 TruckNet Location Offline Junior Member Reputation: 505 Thanks Given: 254 Thanks Received: 786 (18 Posts) Posts: 90 Threads: 33 Joined: Nov 2016 1 07-05-2017, 10:44 PM Hello,, The Cummins EGR engines aren't as bad as people make them out to be. There have been a lot of updates to the software / hardware of the engine to make them more reliable. They were prone to EGR valve problems in their earlier days. The first code is probably caused by plugged EGR diff pressure sensor tubes or a failed sensor. …, Dec 15, 2018 · 2015 Freightliner M2 112. 180k miles on her. This truck already had the EGR Cooler replace 2 years ago. Maybe around 120k miles or so. Before I worked... , Follow the “Conditions For Clearing The Fault Code” section in corresponding fault code overview to validate the repair. Verify fault code is no longer active. If fault code is still active, reference the corresponding fault code troubleshooting tree. Document History L a s t M o d i f i e d : 0 9 - J u n - 2 0 2 0 Date Details, Fault Code: 1866 | SPN: 411 | FMI: 2 Exhaust Gas Recirculation Differential Pressure - Data Erratic, Intermittent, or Incorrect ... • Use the recommended Cummins® electronic service tool or equivalent to read the fault codes. • Use the recommended Cummins® electronic service tool or equivalent to find the current ECM code and revision, CM850 and Cummins ECM. The calibration upgrade will clear the fault code and the ineffective regeneration count locking the turbo to 50%. 3. Clean the aftertreatment injector as indicated in Cummins® procedure 011-042. 4. Perform a flow and leak test on the aftertreatment injector as per Cummins® procedure 011-054. 5. Perform a stationary regen.