How to clear engine derate paccar

Product: https://otrperformance.com/products/otr-reset-tool-paccar-mxThe OTR Reset Tool provides you the capability to get back on the road in less than 5 mi...

Aug 1, 2017 · Perform these repair verification cycles following any corrective actions taken, to confirm that this trouble code is no longer present. Step P1514_2.A Verification Drive Cycle: Start-up SRT: With the brakes set, start the engine and allow it to run at idle for 2 minutes. Step 3. Hey truckers! Tip Wednesday video today....tune in to learn a simple way to reset the codes on your semi truck without a computer. This video was brought to ...Select the FIS file for Download. When the File Download window appears, click Save As. Select the location: C:\intelect\INSITE\FIS. (If INSITE is installed on another drive other than C, substitute the appropriate Drive letter.) Click Save. Click "Yes" to overwrite and replace the existing file. (If the file is read only, right click on the ...Joined: Dec 2018. 2 01-24-2019, 04:08 AM. take care of abs fault first. perform the egr derate disable procedure to clear 1495. run the engine does 1139 return? if its deleted likely the file needs to be adjusted to disregard the lambda sensor. or replace the sensor if the file requires the sensor to operate.this is one possibility on clearing codes snp 3361/ snp 5246 / snp 4364 on freightliner cascadia , this clear codes on my truckhttps://youtu.be/t1yuztairlwDash shows, SCR System Fault, Engine will Derate in <60 mins.. please help me.. Dealer says they cant take me in til Monday. AlexD13, Aug 6, 2016. AlexD13, Aug 6, 2016 #1 + Quote Reply. Trucking Jobs in 30 seconds. Every month 400 people find a job with the help of TruckersReport.NOX sensors could be reading insufficient catalyst conversion efficiency - which could be as simple as replacing the air filter up to requiring the SCR to be replaced. DEF doser could need service, or some component of the DEF system (such as a heater hose) could be faulty. Could be a problem with the DPF... the dash messages are just there to ...

Joined: May 2013. 1 01-31-2021, 10:38 PM. I have a 2019 Peterbilt 389 with a Paccar mx13 that had a clogged dpf filter when it arrived at my shop. Installed a new used dpf filter off another truck and reset dpf filter with davie4. Performed successful regeneration of dpf filter and have no codes or derates.Product: https://otrperformance.com/products/otr-reset-tool-paccar-mxThe OTR Reset Tool provides you the capability to get back on the road in less than 5 mi...Jun 23, 2020 · You clear codes and first trip out it goes back into limp cause you nox output is lower stationary and def system can handle the load better. It’s worth a try but make sure to test drive before calling it fixed. (06-23-2020, 03:16 AM)Rjpierma24 Wrote: have a 2016 freightliner DD15. Has codes 4364,3364,5246. Joined: Dec 2018. 2 01-24-2019, 04:08 AM. take care of abs fault first. perform the egr derate disable procedure to clear 1495. run the engine does 1139 return? if its deleted likely the file needs to be adjusted to disregard the lambda sensor. or replace the sensor if the file requires the sensor to operate.Today I tried to resolve problem with 15’ Cascadia DD15. I have couple active codes related to DEF system (on picture). I performed ADS self test, DEF quantity test, parked regeneration and SCR NOx efficiency test (all tests passed). After these tests I cleared all faults but code 5246/15 still active and after restarting the truck all other ...There are three key benefits associated with DPF delete: more engine power, better fuel economy, and reduced maintenance costs. More power: After deleting the DPF, most owners report a better performing, faster responding engine. Better fuel economy: Fuel economy is a big winner after deleting the DPF. Not only will a vehicle conserve the fuel ...Nich1019. Cummins/Caterpillar Techni... Vocational, Technical or Tra... 6,149 satisfied customers. 2019 Kenworth t880 mx13 stop engine immediately only fault. 2019 Kenworth t880 mx13 stop engine immediately only fault code i get is p1514 I am currently doing a forest region to see if that helps … read more. Nich1019.

Benefits with DPF Delete There are three key benefits associated with DPF delete: more engine power, better fuel economy, and reduced maintenance costs. More power: After deleting the DPF, most owners report a better performing, faster responding engine. Better fuel economy: Fuel economy is a big winner after deleting the DPF.Engine derate in 3 hrs, seek service immediately! Discussion in 'Kenworth Forum' started by kestrel1, Aug 26, 2020. Page 1 ... Welcome to clean air act at our expense.I would have it plugged into the dealer software and check for the most recent updates and the parametr settings. PACCAR PX-6 and PX-8 Engines. and Cummins ISL Engine: Regardless if the DPF lamp is. on or off, the engine speed will. automatically increase to 1000. to 1100 RPM and remain at this. speed for 10 minutes.Reset condition of fault code This DTC becomes inactive as soon as the DTC from which it originates has become inactive. ... 2018 Peterbilt 579 with MX13 Paccar Engine- Engine in Derate mode with fault codes P1515 & P006B. Another mechanic put a new EGR Valve on it because that's the diagnosis they came up with.At low rpm, restriction in the exhaust side (i.e. drive side) of the turbo is increased, effectively making the VGT act like a much smaller turbo. At high rpm, all restriction is removed and you get the impression that a much larger turbo is feeding the engine. Throughout the rpm band and no matter the vehicle’s speed, response is quick …To get your equipment back up and running you will need to: Repair and clear the other fault code (s) that are causing the derate code to display. Once you have fixed the underlying problem (s) you will be able to successfully clear the derate code. This will allow you to start the engine at full power. Attempting to clear the derate code ...

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Reset EGR Derate and DPF Derate. Force DPF Regen. OTR Reset Tool - Purchase now! OTR Reset Tool Videos. Cummins Engine . Volvo & Mack Engine . Paccar MX Engine . Detroit Diesel Engine . Truckfaults belives in empowering every driver with fault code knowledge better and faster than ever before. Fault codes are simplified from one …PACCAR sells the PACCAR MX and the PACCAR PX engines. The PX engines are rebranded Cummins engines, and this blog post will focus on the PACCAR MX engines. At the ECM level, the PACCAR MX engines can be broken down into two categories. The first is 2010 EPA Emissions, which covers model years 2010 through …Apr 25, 2019 · Read more: https://otrperformance.com/blogs/quick-tips/your-cummins-has-a-5-mph-def-derate-spn-5246-what-nowOTR Reset Tool with Forced Regen: https://otrperf... Nov 13, 2019 · To get your equipment back up and running you will need to: Repair and clear the other fault code (s) that are causing the derate code to display. Once you have fixed the underlying problem (s) you will be able to successfully clear the derate code. This will allow you to start the engine at full power. Attempting to clear the derate code ...

Engine derate can be caused by a number of specific faults, most of which relate to a truck’s emissions system. Some of the most common of these issues include DEF quality and DPF/SCR catalyst efficiency faults. In general, faults of this type impede upon a truck’s ability to successfully complete its automatic regeneration cycle.Maybe my information is wrong, but low coolant can reduce power due to engine protection settings. I don’t have any personal experience with the Paccar. Did find a video showing special tool to clear EGR derate code, maybe will take Davie software to clear this code. Hopefully someone with Paccar experience will give some advice.If it doesn’t clear automatically, follow these steps to manually clear the code: Turn on the truck and drive it for about five minutes. Turn off the engine and remove the cylinder …Feb 26, 2020 · 2018 Peterbilt 579 with MX13 Paccar Engine- Engine in Derate mode with fault codes P1515 & P006B. Another mechanic put a new EGR Valve on it because that's the diagnosis they came up with. Truck ran a … Aug 17, 2018 · by OTR Performance. Product: https://otrperformance.com/products/otr-reset-tool-paccar-mxThe OTR Reset Tool provides you the capability to get back on the road in less than 5 mi... To diagnose and fix DEF contamination in a Freightliner Cascadia with a Detroit DD15 engine, you can follow these steps: Check the DEF level using the gauge or dipstick. If it is low, add DEF fluid as needed to bring it to the proper level. Check the DEF fluid for any signs of contamination, such as a change in color or consistency.01-Mar-2020 ... As far as I know, sombody needs to call a tow truck. Once the unit derates it takes a repair and then the Cummins software and a laptop to clear ...Paccar has a service interval for the DEF filter and dosing unit at 300,000 miles. Still, DEF tanks can be contaminated, and that can cause problems with the DEF quality and ultimately NOx conversion.Reset Tool: https://otrperformance.com/products/otr-reset-tool-paccar-mxThe Paccar OTR Reset Tool provides you the capability to do advanced functions in les...Engine derate is cut in power and/or torque on the engine. You may not notice it when empty and on flat ground, but you will definitely notice it when pulling hills while loaded. The derate can be as little as 25% to as much as 90%. Then you have limp mode where the truck will cut speed back. First is to 50 mph then second is to 5 mph.SPN: 3251. FMI: 0/2. Aftertreatment Diesel Particulate Filter Differential Pressure Sensor - Data Erratic, Intermittent, or Incorrect. The aftertreatment diesel particulate filter differential pressure sensor is reading an erratic value at initial key ON or during engine operation.Possible reduced engine performance.

Hold down the regen button and keep holding the button down for at least 10 seconds. The engine RPM’s will start to increase from IDLE to a higher RPM. Remember, do not cancel the regen. Do not press brake pedal, clutch, park brake. A parked regen will take from 10 minutes up to 1 hour to complete.

Reset condition of fault code This DTC becomes inactive as soon as the DTC from which it originates has become inactive. ... 2018 Peterbilt 579 with MX13 Paccar Engine- Engine in Derate mode with fault codes P1515 & P006B. Another mechanic put a new EGR Valve on it because that's the diagnosis they came up with.Hi mates, Some 2015 Volvo when u unplug speed sensor they can move in derate (not showing speed) and some if you unplug speed sensor they still stay in derate, cant go over 5mph (8km/h) One guy told me if we change parameters we can make it work (if we unplug speed sensor) to move in derate. Anyone know which parameters need to …They Can Disable the Derate temporarily, and during a road test The Derate Will Clear by itself as long as everything was fixed, some variations off paccar engines will clear a …This video talks in detail about what an Engine Derate is and what the history of them is.Issue: Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software.2018 Peterbilt 579 with MX13 Paccar Engine- Engine in Derate mode with fault codes P1515 & P006B. Another mechanic put a new EGR Valve on it because that's the diagnosis they came up with. Truck ran a day & went back into derate & those 2 faults are active again. I have the troubleshooting process for the P006B but not finding guide …2018 Peterbilt 579 with MX13 Paccar Engine- Engine in Derate mode with fault ... I have mx13 paccar engine with these fault codes P1514 P1518 p151A Can someone tell me how to clean them or what I have ... I have a 2014 Kenworth vin ***** with paccar engine the serial number is ***** I have code p1517 and p1518 I have davie 4 and the ...Always refer to engine service manual for the latest information related to engine diagnostics and troubleshooting. Contact your local Cummins dealer for more information. Fault Severity Level Fault Severity Function Action To Be Taken By Operator 1 Stop Stop Engine Now – Damage Imminent 2 Warning Warning – Engine May Continue to Run,Hold down the regen button and keep holding the button down for at least 10 seconds. The engine RPM’s will start to increase from IDLE to a higher RPM. Remember, do not cancel the regen. Do not press brake pedal, clutch, park brake. A parked regen will take from 10 minutes up to 1 hour to complete.2017 Peterbilt 348. PX9 engineGetting off and on codes. Hello and welcome to Just Answer, The engine was in a derate and the fault that is causing it is the fuel pressure relive valve failing and allowing excess fuel pressure in the system. The valve needs to be replaced to correct the fuel pressure issue. Then let the engine idle for 5 min and ...

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Sep 30, 2023 · In order to avoid engine derate and ensure optimal performance, it is important to take preventive measures. By conducting regular engine maintenance, identifying common causes of engine derate, and following a step-by-step guide to clear engine derate, you can keep your engine running smoothly and avoid any potential issues. If it’s dirty, replace it. Next, check your fuel filters and make sure they’re clean. If they’re dirty, replace them as well. Finally, check your oil level and quality and make sure they’re both full and fresh. If not, change your oil and filter. Doing all of these things should clear your engine derate.Aug 6, 2016 · NOX sensors could be reading insufficient catalyst conversion efficiency - which could be as simple as replacing the air filter up to requiring the SCR to be replaced. DEF doser could need service, or some component of the DEF system (such as a heater hose) could be faulty. Could be a problem with the DPF... the dash messages are just there to ... SPN: 3251. FMI: 0/2. Aftertreatment Diesel Particulate Filter Differential Pressure Sensor - Data Erratic, Intermittent, or Incorrect. The aftertreatment diesel particulate filter differential pressure sensor is reading an erratic value at initial key ON or during engine operation.Possible reduced engine performance.Repair the underlying problems and remove the fault codes responsible for derating. Fixing the underlying failures will help to clear derating codes permanently. Reset the counter …Repair the underlying problems and remove the fault codes responsible for derating. Fixing the underlying failures will help to clear derating codes permanently. Reset the counter …SPN 5246 FMI 0 Cummins. This code is letting you know the final issue that will be implemented. The code is called the Regulatory Fault Ignored - Final Action (speed Limit). What that means is that your engine will be derated to 5 mph and no higher. You can try to drive above the 5 mph restriction but you run the risk of damaging other ...PACCAR sells the PACCAR MX and the PACCAR PX engines. The PX engines are rebranded Cummins engines, and this blog post will focus on the PACCAR MX engines. At the ECM level, the PACCAR MX engines can be broken down into two categories. The first is 2010 EPA Emissions, which covers model years 2010 through …The derate is due to the nox sensor f/c. Any aftertreatmemt related f/c will cause a derate in these engines. That fault is an information only fault code and will clear as soon as the 3232 goes inactive. I mistook this f/c at first glance for another one and gave out some inaccurate advice.E1389 – Aftertreatment #1 SCR Operator Inducement. This code is an inducement associated with an emissions system fault. The engine is derated, limited to low idle, and can experience 5 minute rolling shutdowns. Probable Causes – Codes in the “Selective Catalyst Reduction System” ECM. An E1389 or 5246 code will come active with another ...WholeFleet Diagnostics 445 subscribers Subscribe 3K views 1 year ago CANADA In this tutorial video, we'll show you how to access the EGR and SCR/DEF derate disable features on a Paccar MX...Nich1019. Cummins/Caterpillar Techni... Vocational, Technical or Tra... 6,149 satisfied customers. 2019 Kenworth t880 mx13 stop engine immediately only fault. 2019 Kenworth t880 mx13 stop engine immediately only fault code i get is p1514 I am currently doing a forest region to see if that helps … read more. Nich1019. ….

Thank You, ***** ***** need Cummins Insite program to reset the aftertreatment system to clear the faults, Or try running the engine at idle for 2 min to see if the derate code goes inactive, You should also have the ECM calibration updated to the latest revision of .44 to prevent future issues Please take a moment to Rate/Accept my …Get engine analyzer with free return and fast delivery. The engine analyzer is made of high quality plastic, which has good toughness and high reliability. Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return.All chassis models equipped with an EPA21 MX-13 or MX-11 engine. Action. Fix as Fail. If a customer comes into your dealership and demonstrates the condion above, use the a ached procedure to clean the fu el injectors. This procedure will be in addion to other diagnos c and troubleshoong steps as specified in RMI or other ser vice documenta on ...Choose ‘PRESSURE RELIEF VALVE RESET (PRV)’. You can do either the automatic or manual process, for this demonstration we will go through the steps for manual. Make sure that the engine is not running. Change the count to ‘0’. Once that has processed we will exit out and go back to ‘READ FAULT CODES’ where you will be able to see ...Paccar has a service interval for the DEF filter and dosing unit at 300,000 miles. Still, DEF tanks can be contaminated, and that can cause problems with the DEF quality and ultimately NOx conversion.Feb 25, 2015 · I would have it plugged into the dealer software and check for the most recent updates and the parametr settings. PACCAR PX-6 and PX-8 Engines. and Cummins ISL Engine: Regardless if the DPF lamp is. on or off, the engine speed will. automatically increase to 1000. to 1100 RPM and remain at this. speed for 10 minutes. Paccar MX engines are one good example as some fault codes may be a nightmare if you do not have the proper tools. Jaltest can disable the engine derate caused by the EGR valve in just a few seconds. If P1495 is active in your ECU memory, you now have a solution with Jaltest. Just head into Maintenance and 'Disable the EGR Power Reduction ...Paccar MX engines are one good example as some fault codes may be a nightmare if you do not have the proper tools. Jaltest can disable the engine derate … How to clear engine derate paccar, 7,972. Jul 12, 2017. 0. The purge air actuator on a MX epa 10 functions in the same manner and is essentially the same part as on a Cummins. Driver side of the engine below the fuel filter is the solenoid valve with a 1/4" nylon air line feeding the valve. Its job is to purge the fuel from the fuel supply line and the fuel doser when the dosing ..., If it doesn’t clear automatically, follow these steps to manually clear the code: Turn on the truck and drive it for about five minutes. Turn off the engine and remove the cylinder …, This EGR derate on a Paccar limits your engine power up to 25-40%. The loss in power will prompt you to seek service at a repair shop or dealer. What causes P1496 to be come active? This fault code is an indication that there is a problem with another fault code that triggers a derate. So, this fault code alone is not enough to fix it., If it doesn't clear automatically, follow these steps to manually clear the code: Turn on the truck and drive it for about five minutes. Turn off the engine and remove the cylinder head cover. Check for any loose wiring or connections. If you find any loose wiring or connections, tighten them up and check again., How to get out of 5 mph in 60 minutes.SA 17 ACM MODULE DTC P20E892, SA 16 ENGINE MODULE DTC P110286, SA 17 ACM MODULE DTC P202D00, Mack Truck SCR low Perform..., Jun 21, 2021 · in this video I will show you how to clear a specific derate code. Keep in mind that not all codes can be cleared from the side of the road. For many you wil... , 3712 and 3714 are derate codes , these codes are information only and indicates power derate , you must have other code with it , if you don't have any active codes except 3712 , run engine few minutes and he will go inactive only if you don't have any other codes . Thanks given by: 1 user. Reply., How To Clear SPN 1569 FMI 31. “ To clear 1569:31 you need to use Servicemaxx and go into parameters. Clear DTCs. Cycle the key off for 1 minute (key must be off for a minimum of 1 minute) Go back into parameters. If SCR Rest is still 0 or No, change it back to 1 and cycle the key back off for 1 minute”., Found my decomp pipe was incorrectly installed and cleaned the massive crystal buildup out then reinstalled it. Also did a full test on the aftertreatment harness and engine harness. No issues found. They then did 2 50 mile road tests amd a regen found everything in spec. Got 200 miles and boom max derate towed in yet again., 2017 peterbilt 337 paccar px-9. def issue, engine derate. have codes. 4677, 4572, 3868, 3867, 3714 & 3712. only thing - Answered by a verified Technician We use cookies to give you the best possible experience on our website., Paccar has a service interval for the DEF filter and dosing unit at 300,000 miles. Still, DEF tanks can be contaminated, and that can cause problems with the DEF quality and ultimately NOx conversion., JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. I have a 2017 Kenworth t880 with a Paccar mx13 on display shows limp home mode maximum derate replace def fluid. I have - Answered by a verified Technician., You'll need to have someone connect to the engine with diagnostic software, preferably Davie 4 (dealer level software) and pull the faults. If you can get me specific faults I can give you a pretty good idea of what's going on.I asked about the DEF level gauge because a very common failure that I've been seeing a lot lately is a faulty DEF …, Lucky for you, OTR has a 5 MPH DEF derate tool for reset. The OTR reset tool for Paccar will reset the 5MPH derate at the dealer level, and it will give you the capability to perform these resets yourself for a significantly lower cost. Now let’s see what the benefits for you are: The OTR’s reset tool will completely clear the fault codes ..., PACCAR sells the PACCAR MX and the PACCAR PX engines. The PX engines are rebranded Cummins engines, and this blog post will focus on the PACCAR MX engines. At the ECM level, the PACCAR MX engines can be broken down into two categories. The first is 2010 EPA Emissions, which covers model years 2010 through …, I would have it plugged into the dealer software and check for the most recent updates and the parametr settings. PACCAR PX-6 and PX-8 Engines. and Cummins ISL Engine: Regardless if the DPF lamp is. on or off, the engine speed will. automatically increase to 1000. to 1100 RPM and remain at this. speed for 10 minutes., Engine Protection System EGR Failure Detected, Causing Fuel Derate. ECM: PACCAR - MX (2013 Emissions) Fault: P1495. Diagnostic condition: Not available/required for this code. Set condition of fault code: This DTC is activated when DTC 1496 has been active for more than 10 hours of engine operation. Reset condition of fault code:, Feb 9, 2020 · PACCAR MX11 EPA 17 RESET DERATE. Let me start off with this community has been a game changer for the business that I currently manage fleet operations for. Thank you to all for your contributions to this site! I have a few PACCAR engines, 6 PX9's, 1 MX11, and 3 MX13's. , Dash shows, SCR System Fault, Engine will Derate in <60 mins.. please help me.. Dealer says they cant take me in til Monday. AlexD13, Aug 6, 2016. AlexD13, Aug 6, 2016 #1 + Quote Reply. Trucking Jobs in 30 seconds. Every month 400 people find a job with the help of TruckersReport., engine-derate-paccar 1/12 Downloaded from whitelabel.nightwatch.io on December 31, 2022 by guest Engine Derate Paccar ... Clean Fuel Supply Organisation for Economic Co-operation and Development 1978 Remembering Peter Sellers Graham Stark 1990 Peter Sellers was a man of many, View sample plans Add to Cart The OTR Reset Tool is a plug-and-play tool that gives you the ability to run commands such as forced DPF regen in less than 5 minutes. Paccar Clear 5 MPH DEF Derate & EGR Derate without Davie4 | Paccar MX-11 MX-13 | OTR Performance Watch on Paccar MX Engines Covered Paccar MX Chassis Coverage, How to BYPASS DEF Derate on Paccar MX. DieselBullet. 14.4K subscribers. 68K views 6 years ago. Get home with these steps even if your truck is def derated. If this helped you get home, let me..., The Google Search Engine - The Google search engine remains the cornerstone of just about everything the company does. Helping users find what they want on the internet is paramount. Advertisement As large as Google has grown, as many chang..., If your Fiat PowerTrain or other off-road engine gives you a derate code, it’s probably not the end of the code you see. If you receive a derate code, it is a sign of hidden problems. Some of the most common problems that lead to derate code in FPT engines are: • High-Temperature Sensor. • Fuel Pressure Relief Valve., Hold down the regen button and keep holding the button down for at least 10 seconds. The engine RPM’s will start to increase from IDLE to a higher RPM. Remember, do not cancel the regen. Do not press brake pedal, clutch, park brake. A parked regen will take from 10 minutes up to 1 hour to complete., 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 calibration from QuickServe® Online or the April 2013 INCAL Calibration DVD or newer. Once the ECM has the new software, all fault codes will be cleared., If your DPF is full this a very detailed video of removing your DPF and cleaning it as well. Best way to save a lot of money and down time. I Genuinely hope ..., Van Gertner, our onsite Peterbilt rep at Prime Inc, shares what the regen process is and how to do a manual regen, if needed, on a Peterbilt truck. If you ha..., JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. >. I have a 2017 Kenworth t880 with a Paccar mx13 on display shows limp home mode maximum derate replace def fluid. I have - Answered by a verified Technician., To turn the light off, you are supposed to add a minimum of 2 gallons of DEF fluid. Then, it may take a couple of restart cycles to fully clear the light and have it shut off. When the light stays on, it is also possible that the DEF pump module has failed or a …, well you have to reset derate and make sure def is not frozen, than the truck has to drive for 50 miles or so some truck have def quality sensor mounted in the def tank that might be you issue., The PACCAR adapter changes the communication from CAN3 to CAN1 and routes the right communication information to the diagnostic scan tool. If you don’t have this adapter you will NOT be able to perform any of the commands such as reset fault codes, reset EGR derate, reset 5mph derate or force a DPF regen., Issue: Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software.