Here is a list of all Cummins fault codes for the ISB diesel engine. Just scroll down the list for a discription of your specific fault code. 111 Electronic Control Module ECM Microprocessor. 115 Engine Speed Sensor ESS Circuit. 122 Intake Manifold Pressure Sensor Circuit. 123 Intake Manifold Pressure Sensor Circuit.2012 peterbilt isx12 code 3714 derate code and 1866 EGR diff pressure erratic inter or incorrect. how do i diag either - Answered by a verified Technician ... 2011 Ford F750 with an ISB Cummins eng serial 57774620 has codes 1866 Delta P sensor circuit EGR valve. intermittent or incorrect data 2639 pressure differential sensor for …Disable the fault code. Use INSITE™ electronic service tool to verify the fault code is inactive. Fault Code 556 inactive? YES NO No Repair Return to the troubleshooting steps or contact a Cummins® Authorized Repair Location if all steps have been completed and checked again. Go to 5B Go to 2A Guided Step 5B - Check for progressive damage ...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 …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 ...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 ... 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 ...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 ...1 Cummins L9 engine and engine cooling TSB (Bulletin TSB190165) Engine and engine cooling. This technical service bulletin describes the verification and resolution of fault codes 1866, 3361, 3382, 3383, 3389, 7232, 7233 and/or 4729. This is an update to the previously submitted communication. Cummins B6.7, Cummins L9.Jul 14, 2010 · Cummins ISX Codes 111-500. 111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component. 115 Engine Magnetic Speed/Position Lost Both of Two Signals - Data Erratic, Intermittent, or Incorrect. 122 Intake Manifold 1 Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source. 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...The sensor was replaced and the code did not come back. The 3712 and 3714 codes however would not clear, and the engine was in derate mode. Below you can see the conditions for clearing the code: 3712 - Aftertreatment SCR Operator Inducement- Data Valid but Above Normal Operational Range- Most Severe Level. Jun 13, 2019 · 0. Ive got an X15 Performance that keeps throwing FC3383. Engine Exhaust Gas Recirculation (EGR) System - Data Valid But Above Normal Operating Range - Moderately Severe Level. Seems like it is measuring EGR when it shouldnt. I have had this code log at valve 0% open, 33% open and 34% open. Ive cleaned the EGR venturi, replaced the EGR ... Jul 14, 2010 · Cummins ISX Codes 111-500. 111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component. 115 Engine Magnetic Speed/Position Lost Both of Two Signals - Data Erratic, Intermittent, or Incorrect. 122 Intake Manifold 1 Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source. 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.Check for primary fault codes. Solution: S00000154. Verification. Conditions. Turn keyswitch ON. Connect the recommended Cummins® electronic …3748, 4156, 4169, or 4769. These fault codes will lead to Fault Code 3714 or 6255 (inducement) within 1 hour and will eventually lead to Fault Code 3712 or 6254 (severe inducement) if notaddressed. Even when those active fault(s) are addressed before Fault Code 3714 or 6254 becomes active and are cleared, Fault Codes 3714 or 6255 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 CalibrationCummins ISX with an active code 411 or 1866 above normal.(using ultra-link not in-site) pulled off the diff tubes and - Answered by a verified TechnicianThe 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 …Electrical System. Summary: This technical service bulletin describes the verification and resolution of fault code 4585 coming active after engine control module (ecm) calibration or ecm calibration code change. To clear the active fault code 4585, a new aftertreatme. TSB Number: TSB130099-020420.This means: Exhaust Gas Recirculation Valve Delta Pressure - Data Erratic, Intermittent, or Incorrect. An error in the EGR delta pressure signal was detected at initial …Action · Use the recommended Cummins® electronic service tool or equivalent to read the fault codes. ... 1866, 1867, 1961, 2272, 2273, 2274, 2349, 2353, 2375 ...SPN 101 - FMI 4 (Fault Code 1844) SPN 411 - FMI 2 (Fault Code 1866) Blog.Teknisi. Subscribe to receive free email updates: 0 Response to "SPN 2791 - FMI 13 (Fault Code 1896)" Post a Comment. Newer Post Older Post Home. Subscribe to: Post Comments (Atom) Categories. Fault Codes CUMMINS ISB ISC ISL ISBe ISDe and …1 Cummins L9 engine and engine cooling TSB (Bulletin TSB190165) Engine and engine cooling. This technical service bulletin describes the verification and resolution of fault codes 1866, 3361, 3382, 3383, 3389, 7232, 7233 and/or 4729. This is an update to the previously submitted communication. Cummins B6.7, Cummins L9.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...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. …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 ... 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.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 …2012 freightliner M2 106 code 1866 related to the EGR differential pressure sensor. the solution is to replace the sensor, unless the two holes that go under...Fault Code: 1866 PID (P), SID (S): P411 SPN: 411 FMI: 2/2 Lamp: Amber REASON: Exhaust Gas Recirculation Valve Delta Pressure - Data Erratic, Intermittent, or Incorrect. An error in the EGR delta pressure signal was detected at initial key-on or the sensor failed the autozero test. EFFECT: EGR valve actuation will be disabled. Circuit Description:I've had plenty of experience with this code, Usually around 200k or so this is a must.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: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...Mar 29, 2016 · Fault Code: 1921. PID: S324. SPN: 3251. FMI: 0/16. LAMP: Amber. SRT: Aftertreatment Diesel Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level. The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits. Probably fix. Connect all components. • Connect the recommended Cummins electronic service tool or equivalent. • Disable Fault Code. • Operate the engine within the "Conditions for Clearing the Fault Code" found in the Overview section of the. troubleshooting procedure. • Verify that the fault code is no longer active.Save. 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. …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 moreDiagnostic 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 …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. 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 …Cummins codes Page 41 Allison Trans 2000 codes Page 81 Allison Trans 3000 codes Page 84 C2 BHM codes Page 90. Locate the LCD display in the center of the dash and the reset/mode button to the right Your ICU dash will display the MID numbers for the modules that have an active fault. The complete SAE formatted fault code can be retrieved ...This fault code is logged when the ECM has detected a high temperature condition in the aftertreatment system and active regeneration of the aftertreatment. ... Cummins ISB6.7 CM2150 (2007-09) Fault Code: 1966 PID: 326 SPN: 3241 FMI: 0 Aftertreatment Exhaust Gas Temperature 1 – Data Valid But Above Normal Operating Range – Most Severe LevelJul 6, 2017 · Cummins ISB Engine Code EGR Valve. This EGR Valve fault code popped up and it caused a slight hesitation on acceleration which would make sense if the valve is open at the wrong time. The EGR funnels cooled exhaust coming from the EGR cooler into the intake system to cut down on emission levels. The code was 1896 EGR Valve Controller out of ... Check 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 …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• 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 CalibrationI 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.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 moreElectrical System. Summary: This technical service bulletin describes the verification and resolution of fault code 4585 coming active after engine control module (ecm) calibration or ecm calibration code change. To clear the active fault code 4585, a new aftertreatme. TSB Number: TSB130099-020420.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 revisionDiagnostic Trouble Code(s) & Dashboard Indicator Light(s): DTC/Light Description SPN: 411 FMI: 2 (Cummins 1866) EGR Differential Pressure - Data Erratic, Intermittent, or Incorrect SPN: 102 FMI: 10 (Cummins 3361) Intake Manifold Pressure - Abnormal rate of change SPN: 3058 FMI: 18 (Cummins 3382) EGR System - Data valid but below normal ...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. But.... code is completely gone when outside is cold , when outside is over 50F code ...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 ...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 …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 revisionJun 12, 2014 · Mr. Cat Man, I have cummins ISX with a engine code of 3382 which is "Engine Exhaust Gas Recirculation Data Valid but below normal operating range moderatly severe." We have put two new EGR differential pressure sensor in. The egr valve at idle is 80 percent and 0 when engine is speed up. Our EGR differential pressure is showing 0.0 in Hg. It'll read and clear faults plus gives all kinds of info on your engine. Only catch is Cummins stopped publishing the app, now wanting people to pay for the info so it's no longer available on the play store. So do a Google search for Cummins Fault Adviser 1.1.2.5 , download and install the app. It's a Cummins app so works flawlessly.Active or multiple inactive counts of Fault Codes: 1866, 3361, 3382, 3383, 3389, 7232, 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.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 ... Fault Codes 555 and 556 Caused by Dust/Debris Ingestion on Ford F-650/F-750 Chassis Issue The ISB6.7 CM2250 and CM2350 B101 engines in 2012 and 2013 model year Ford F-650/F-750 chassis have experienced Fault Codes 555 and 556 for high crankcase pressure, which are found to be caused by worn or broken piston rings. The piston rings have worn or ... Follow the “Conditions For Clearing The Fault Code” section in FC3383 to validate the repair. Verify Fault Code 3383 is no longer active. If fault code is still active, reference the Fault Code 3383 troubleshooting tree. Last Modified: 20-Sep-2019 Date Details 2019-9-20 Module Created2017 IC Bus vin: ***** with ISB Cummins esn: 73892436 two active codes 1922 and 3342 with several inactive codes 1866, 3312, 4612, 3383, 2962, 3382, 2961 ... Cummins isl 450 up in an rv - gating code SPN 111 FMI 18 - know this indicates trouble with coolant level sensor in the overflow tank. It is causing some power loss.Cummins engines common cause of EGR system fault codes.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 ...Home » Fault Codes CUMMINS ISB ISC ISL ISBe ISDe and QSB3.3 CM2150 » SPN 411 - FMI 2 (Fault Code 1866) SPN 411 - FMI 2 (Fault Code 1866) ... 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 sensor2016 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 but Still getting soot build up at the DPF filter that was just cleaned. Submitted: 2 years ago.Cummins Tier 4 Fault Codes Fault Code J1939 SPN J1939 FMI Lamp J1939 SPN Description Cummins Description QSB 6.7 QSL 9 QSX 15 QSB 4.5 QSF 3.8 QSG12 213 175 4 Amber Engine Oil Temperature 1 Engine Oil Temperature Sensor 1 Circuit - Voltage below normal, or shorted to low source XX 214 175 0 Red Engine Oil Temperature 1Fault 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)Jun 12, 2014 · Mr. Cat Man, I have cummins ISX with a engine code of 3382 which is "Engine Exhaust Gas Recirculation Data Valid but below normal operating range moderatly severe." We have put two new EGR differential pressure sensor in. The egr valve at idle is 80 percent and 0 when engine is speed up. Our EGR differential pressure is showing 0.0 in Hg. Dec 31, 2020 · 2012 freightliner M2 106 code 1866 related to the EGR differential pressure sensor. the solution is to replace the sensor, unless the two holes that go under... Mr. Cat Man, I have cummins ISX with a engine code of 3382 which is "Engine Exhaust Gas Recirculation Data Valid but below normal operating range moderatly severe." We have put two new EGR differential pressure sensor in. The egr valve at idle is 80 percent and 0 when engine is speed up. Our EGR differential pressure is showing 0.0 in Hg.Cummins Incorporated produces various types of diesel engines that have a wide variety of uses. It has made significant improvements over the years to become one of the world’s largest manufacturers of diesel engines. Like every car, they c...Cummins ISB 6.7 Liter EGR code repair. See the full write up here https://www.mechanicshub.com/toolbox/cummins-isb-engine-code-egr-valve/. Go here for the la...Replaced diff sensor still getting this code. Any ideas and. MHH Auto ... Ford Cummins Isb code 3382. Rjpierma24 Location Offline Senior Member Reputation: 5. Thanks Given: 79 Thanks Received: 74 (48 Posts) Posts: 656 Threads: 335 Joined: Feb 2016 1 11-28-2018, 10:57 PM .Active or multiple inactive counts of Fault Codes: 1866, 3361, 3382, 3383, 3389, 7232, 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.• 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.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 codes are current at date of publication. Always refer to engine service manual for the latest information related to engine diagnostics and troubleshooting. If your Dodge diesel is in need of a new starter, you can remove it yourself and save yourself a large repair bill. The starter motor on the diesel engine is a larger, heavy duty unit that has the higher torque required to turn over the hig...• 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 CalibrationThis video shows how to DIY a 2016 Cummins ISX cm2350 EGR Differential Pressure (Delta P) Sensor Replacement.Possible causes of this fault code include: whatsapp +51955515985; [email protected]; 24/7 Customer SupportMr. Cat Man, I have cummins ISX with a engine code of 3382 which is "Engine Exhaust Gas Recirculation Data Valid but below normal operating range moderatly severe." We have put two new EGR differential pressure sensor in. The egr valve at idle is 80 percent and 0 when engine is speed up. Our EGR differential pressure is showing 0.0 in Hg.Oct 20, 2023 · 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. But.... code is completely gone when outside is cold , when outside is over 50F code ... The item “Cummins ISC/ISL 8.3 Diesel Engine EGR Valve 5271583 OEM” is in sale since Friday, October 23, 2020. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Emission Systems\EGR Valves”. The seller is “gizzarddiesel” and is located in Anderson, South Carolina. This item can be shipped worldwide.Code Overview page. Verify all fault codes, including Fault Code 3714, 6255, 6254, or 3712, are inactive. If the “Clear All Faults” command was used to clear all faults in the ECM, use recommended Cummins® electronic service tool or equivalent to calibrate the ECM with the latest calibration80-1235. Rev: 11/10/2020 Page 3 of 30. f Cummins Tier 4 Fault Codes. Fault Code J1939 SPN J1939 FMI Lamp J1939 SPN Description Cummins Description QSB 6.7 QSL 9 QSX 15 QSB 4.5 QSF 3.8 QSG12. 425 175 2 Amber Engine Oil Temperature 1 Engine Oil Temperature - Data erratic, intermittent or incorrect X X.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 ...10 freightliner m2 106 6.7 cummins. code 1866, pid 4, fmi 2 spn 411 cleaned out diff pressure ports, replace diff pressure sensor packed hard and full. cleaned up egr and replaced gaskets.