Level 2 engine derate cummins

May 24, 2022 · Freightliner Cummins Engine Code 1569. The SPN1569 FMI 31 translates to Cummins code 3714 and it is only a warning code. There should be a second code along with this one to let you know what the problem is. You may not get the right answer as Cummins doe snot put all their codes to appear on your dashboard screen.

CUMMINS ENGINE COMPANY, INC Columbus, Indiana 47201 ENGINE PERFORMANCE CURVE Curve Number: FR-6250 Basic Engine Model: KTA50-G3 Engine Critical Parts List: CPL: 2227 Date: 12Jan01 ... For sustained operation above these conditions, derate by an additional 5% per 1000 ft (300 m) and 9% per 18 ° F (10° C). Cummins Engine …If the coolant exceeds the maximum predefined limit, usually around 230°F, the ECM will immediately derate engine power. This protects the engine from …13' Ram 2500 CCSB 6.7 2" Level, Thuren tracbar, 20x10 Fuel Maverick's, 35's, Road Armor Bumpers, Anarchy Tuned MM3, Flo-Pro Race Pipe ... the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, …Cummins EPA 2013 and newer diesel engines for fire and emergency vehicles should not experience any emissions-related vehicle speed or engine torque derates. To determine if there are calibration updates applicable to your engine, contact Cummins Care at 1-800-DIESELS™ (1-800-343-7357) with your Engine Serial Number (ESN).Selective Catalytic Reduction (SCR) Engines Engine controls the production of particulate matter (PM), thus limiting it within the permissible value, while SCR is an exhaust after treatment device to reduce NOx. SCR spreads aqueous urea solution (AUS 32) into the exhaust stream. Ammonia from AUS32 combines with NOx in presence of catalyst to …

In general, a derate means that the car engine computer program is limiting the vehicle speed or power. It is designed to protect you from causing any engine or diesel particulate filter (DPF) damage. However, engine deteriorating, aka derating, can be extremely beneficial in certain situations. It is enabling a prolonged engine life ... Jul 31, 2023 · A derate is intended to safeguard you from inflicting harm to the engine. Web Level 2 Engine Derate. ... Kw t680 cummins isx 800,000 just completed pm. Web here are ... 24 posts · Joined 2010. #1 · Sep 1, 2010. I have a 2001 ISX CM 570. It has a stall at full throttle in every gear above 6. I notice it mainly in top gear around 1350-1400 rpm thru 1650 rpm. I did an Insite log to see what was going on. The user fueling state shows both an AFC Derate and a FSS Derate. I think the AFC is due to boost pressure ...Watch on. Ambient temperature has a significant effect on an engine’s output. As the ambient temperature increases beyond designed operating conditions, engine derating begins, decreasing its efficiency. For example, if an engine is designed to operate at 30°C, and the ambient temperature reaches 40°C, the engines can experience a reduction ...Cummins fire pump drive engines are designed to help you power through building disasters. Whether it be a small copier fire in the office or a major thermal event on an oil platform, turn to us for fail-safe products and peace of mind. Out team offers you customizable expertise backed by the reputability and reliability of a world leader in ...power.cummins.com ©2017 Cummins Inc. | D-6203 (08/17) Altitude and temperature derate multiplication factor 1.2.3 Barometer Altitude Table A In Hg mbar Feet Meters Derate multiplier for all operation modescodes reset Clearing An Engine Derate On A Cummins ISX15 With The Bosch HDS 200 250 - Truck Repairs DIY Cummins ISX IMAP (Manifold Absolute Pressure) CM 2350 Sensor. ... Range - Moderately Severe Level.Cummins ISX Engine Fault Codes List - Cummins Parts and ...Cummins ISX Engine Fault Codes(Codes 501-999) 546 Fuel …¹ Derating guidelines: Natural Gas: Engine power available up to 762m (2500 ft) at ambient temperatures up to 40 °C (104 °F). Above these elevations derate at 4% per 305m (1000 ft) and 2% per 10 °C above 40 °C (104 °F). Propane: Engine power available up to 1005m (3300 ft) at ambien t temperatures up to 40 °C (104 °F).

Select the eraser tool in the bottom left of the screen to clear the faults. You will be able to see all of the codes that are cleared except for 3714 (derate) Run the engine for 2 minutes. If the engine shuts down you may need to run it again until it confirms the def level in the tank if it was out of DEF. Turn off the engine.There are no hard and fast rules that determine patterns and levels of investment made by either institutional investors or individuals. However, there are a few common factors and...Fault Code: 124. PID (P): P102. SPN: 102. FMI: 0/16. Intake Manifold 1 Pressure - Data Valid But Above Normal Operating Range - Moderately Severe Level. Intake manifold pressure is above the maximum operating limit. The intake manifold 1 pressure/temperature sensor is located in the air intake horn. Possible causes of this …Do you know how to level a concrete floor? Find out how to level a concrete floor in this article from HowStuffWorks. Advertisement You want to lay some rather nice tiles over the ...Fixing the underlying failures will help to clear derating codes permanently. Reset the counter at zero; this will help the engine restart at full engine power. Restart the engine three times for normal confirmation functionality. If there is a failure in repair confirmation, then after 30 minutes, you will need to restart the engine as it will ...uncompromising level of technical support and after sales service, delivered through a world class service network. This engine hasbeen built to comply ... Cummins G-Drive Engines. Asia Pacific . 10 Toh Guan Road #07-01 . TT International Tradepark . Singapore 608838 . Phone 65 6417 2388 . Fax 65 6417 2399.

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Cummins fire pump drive engines are designed to help you power through building disasters. Whether it be a small copier fire in the office or a major thermal event on an oil platform, turn to us for fail-safe products and peace of mind. Out team offers you customizable expertise backed by the reputability and reliability of a world leader in ...Cummins emergency rated engines are specially designed to not shutdown or derate due to DPF loading. The Cummins Aftertreatment System does not affect engine and pumpingSo recently in the past few weeks I have been noticing odd regen frequency. They come and go throughout the day and what it looks like is the DPF soot load is not getting above 33%? Some times it doesn’t even get above 23%. Right now, I am driving a consistent 65 and it’ll raise to 23 and then drop back down to 17 to 19.Mar 15, 2014 · When their is a problem with the DEF system or sensors. That what happens. Fist your DEF light will flash. Then check engine light comes on. If driver keep driving or does not notice. I think the system is set let truck go 500 miles. If not fixed then the red engine light comes on and truck will limit speed to 5MPH. Designed and tested for military applications, the model DQBPU uses PowerCommand Control and offers significant operational advantages for all military services. It can run on multiple fuels (JP-8, JP-5, Jet A, DF 1,2), operate in wide temperature range and delivers excellent power quality. DQBPU is an integrated power options in a mobile ...

Welcome to our channel! In today's video, Ryan is analyzing the problem on the truck derating issue happened a few times. And finally he found the issue and ...¹ Derating guidelines: Engine power available up to 488 m (1600 ft) at ambient temperatures up to 25 °C (77 °F). Above these elevations derate at 4% per 305m (1000 ft) and 2% per 10 °C above 25 °C (77 °F).Disconnect the intake manifold pressure sensor from the engine harness. [/TD] [/TR] [TR] [TD] Action Check for continuity in the sensor harness. Measure the resistance from pin 2 of the sensor harness connector at the ECM to pin A of the sensor connector on the engine harness.Engine torque is an important factor in determining the performance of a vehicle. It is the amount of force that is applied to the crankshaft to move the vehicle forward. Knowing h...However, these same engines, often found in Peterbilt and Kenworth trucks, can also enter a far more severe 5 MPH derate, if the issue at hand is not quickly recognized and remedied. This heightened level of derate is also common in Volvo-brand trucks, as well as some consumer-grade pickups.May 2, 2020 · Left truck running over night (was -30f), started driving in morning and started getting Engine derate in 1 hr, Power reduced due to SCR, and SCR fault detected or altered. Did a 1 hour manual regen, but codes kept showing. Had to do a load and all throughout the day I kept getting those codes, with the derate in 59minutes reseting as I was ... Delete the engine derate DTC. After resolving all issues, use a scan tool to delete the engine derate code, among other related DTCs. Reset the rev counter (tachometer) to zero. Resetting the rev counter will allow your engine to restart at full throttle. Reboot the engine (turn the ignition On and Off) three times.Specifications. Cummins® heavy-duty engine - Rugged 4-cycle, industrial diesel delivers reliable power, low emissions and fast response to load changes. Alternator - Several alternator sizes offer selectable motor starting capability with low reactance 2/3 pitch windings, low waveform distortion with non-linear loads and fault clearing short ...Dec 1, 2018 ... Codes for DEF level, quality, sensor ... Experts Shares Diesel Exhaust Fluid Info Saving You Major Engine Repairs ... Cummins isx fault code 3577 ...

Nov 1, 2021 · There are multiple levels of engine power derates, known as inducements, that are enforced when a fault condition exists. For a Urea Quality Sensor (UQS) fault, the steps are: warning, torque derate 1, torque derate 2, then severe derate. The first step, warning, will turn on a check engine light and/or a MIL light. Torque derate 1 reduces ...

Left truck running over night (was -30f), started driving in morning and started getting Engine derate in 1 hr, Power reduced due to SCR, and SCR fault detected or altered. Did a 1 hour manual regen, but codes kept showing. Had to do a load and all throughout the day I kept getting those codes, with the derate in 59minutes reseting as I …Diesel Exhaust Fluid is formulated with 32.5 percent urea and 67.5 percent deionized water. In storage or when the engine is not in use, DEF will freeze at 12°F (-11°C). At this concentration level, the urea and the water freeze and thaw at the same rate – ensuring that you always have the correct amount of each.Typical stable lifespan of diesel is 12 – 16 months in ideal conditions. Diesel sulfur content reduction (ULSD) limits fuel’s anti-microbial properties. Bio-diesel blending may reduce fuel stability (up to 6 months), promotes water absorption and biomass growth. Diesel fuel quality critical to equipment operation.If you have an older competitive engine, you'll find that replacing it with the QST30 gives you up to 25% more power and torque, better fuel economy and longer service intervals, for increased productivity with lower costs. Every time. Advertised Horsepower. 760-1500 hp. 567-1119 kW. Peak Torque.Cummins emergency rated engines are specially designed to not shutdown or derate due to DPF loading. The Cummins Aftertreatment System does not affect engine and pumpingNov 25, 2009 · To me all that power is just more stress and strain on rotating bottom end parts as well as just more heat to wear out head gaskets, valves and seats and the turbo. I want to figure out if it is possible to derate my 08 6.7 cummins motor down to 160 horsepower or thereabouts. I know cummins sells the 6.7 QSB for sale with 135 to 275 hp. Nov 21, 2019 ... ... 225K views · 21:18. Go to channel · Runaway 2 Stroke 8V71 Detroit Diesel Engine - 1970s GMC Semi Truck. KT3406E•2.5M views · 6:13. Go to c...Take your small business brand to the next level at BrandSmart 2023 with insight from more than 300 brand marketers across every industry. Growing the brand of your small business ...In addition, critical components of the generator are designed to ensure service and preventive maintenance can be completed in a short period of time. Weight: 1356 lbs (615 kg) Size: Length 94 in (2388 mm), width 34 in (864 mm), height 45.5 in (1156 mm) Sound: 63 dB(A) at 23 ft (7 m) with sound level 2 enclosure. Series. 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 ...

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Considering the 1114 unnecessary regens, we discovered on a single engine model when only one active fault was present, between 1114 and 1671 gallons of fuel were wasted on unnecessary regens. Using an average diesel price of $2.42, that equates to $2,700-$4,043 in wasted fuel costs.Beaten-Down Biogen Could Finally Be Reaching an 'Interesting' Level...BIIB Biogen Inc. (BIIB) stock has suffered a number of sinking spells over the years. The latest decli...Fault Code: 3714: Engine Protection Torque Derate – Condition Exists. SPN: 1569 / FMI: 11/31. Cummins Fault codes 3712 and 3714. If these fault codes are active, this means the engine performance is already reduced (power derate) and possibly the vehicle speed is also limited. Both are information-only fault codes which appear when the ECM ...To Perform the Test: 1). Open and connect the Cummins INSITE Software. Read More: How to Connecting CUMMINS Engines using Cummins INSITE Software. 2). Select ECM Diagnostic Tests from the INSITE Viewbar. 3). In the ECM Diagnostic Tests Wizard, select Engine State Monitor, as Figure 1.1 above. 4).In this article, we will go over some steps you can take to troubleshoot and repair the possible causes of 5mph derate on a Cummins ISX engine. Check for fault codes: Using a diagnostic scan tool, check for any fault codes that may be causing the derate mode. These codes can help to identify the specific issue with the engine.54 grams –125% Soot Loading. 1)Clean Filter lamp illuminates. 2)Vehicle needs to be operated above 30 mph for 20 to 30 minutes . See label above visor. 70 grams –160% Soot Loading. 1)P2463 Diagnostic Trouble Code (DTC) sets, 2)Reduced Engine Power, 3)Service Regeneration required. 87 grams –200%Soot Loading.Eventually, it just quit working all together, and the gauge was stuck on empty, even though it was full of def. He caught a load going about 300 miles out, so I asked him to try something. When his miles got down to about 100 left until the 5mph derate, I had him pull over and remove the negatives on the battery, to see if it reset the miles ...Cummins Fault Code: 6255 SPN: 1569 Engine Protection Torque Derate – Data Valid But Above Normal Operating Range – Least Severe Level. Cummins Fault Code: 6254 SPN: 5246 Aftertreatment SCR Operator Inducement Severity – Data Valid But Above Normal Operating Range – Moderately Severe Level. Code Analysis: When these fault codes appear ...Cummins fire pump drive engines are designed to help you power through building disasters. Whether it be a small copier fire in the office or a major thermal event on an oil platform, turn to us for fail-safe products and peace of mind. Out team offers you customizable expertise backed by the reputability and reliability of a world leader in ...4. Fuel Pressure that is too Low. When the fuel pressure in your engine is low, it can cause the engine to run lean. To run lean means that there is not enough fuel in the mixture of fuel and air. This can cause damage to the engine. Also in this case, the ECM will reduce power to protect the engine from damage.Cummins Fault Code: 6255 SPN: 1569 Engine Protection Torque Derate – Data Valid But Above Normal Operating Range – Least Severe Level. Cummins Fault Code: 6254 SPN: 5246 Aftertreatment SCR Operator Inducement Severity – Data Valid But Above Normal Operating Range – Moderately Severe Level. Code Analysis: When these fault codes appear ...I just got truck (2015 kenworth t680 cummins isx engine) serviced at El Paso Kenworth dealer. Had them remove 2 derate codes that put me at 5mph due to bad def quality sensor. My question is, can I be … read more ….

The equation for this Level 2 engine speed derate is the same as the coolant level fault derate equation, with the appropriate variables substituted. In the specific embodiment, the time to maximum engine speed derate t C2 is 24 seconds. For illustrative purposes, the coolant temperature fault characteristics are depicted on a line graph in …For example, if the manufacturer rated the genset at sea-level and 25C, but you are at 400 meters altitude and 30C: The change in pressure from sea-level to 400 meters results in 95.5% oxygen ...Take your small business brand to the next level at BrandSmart 2023 with insight from more than 300 brand marketers across every industry. Growing the brand of your small business ...Jan 7, 2014 · 198 posts · Joined 2013. #3 · Jan 7, 2014. Yes a CEL can cause the engine to go into a detuned mode. Had CEL's on my previous diesel truck and noticed the lack of power while pulling. 2013 White Ram 2500 SLT Bighorn, CTD, CC, LB, Andersen 5th wheel hitch, RWD. Save Share. 2018 Ram 3500 Limited - Crew Cab Long Box 4x4 SRW, 19+ Tail Lights with BSM, Thuren 2" Level, Fox 2.0 Remote Reservoir Shocks with Thuren Brackets, Carli Front Shock mounts, BMP filter conversion, and more that i forgot. Make your puddle lights great again! SUPPORT SITE VENDORS, THEY MAKE ALL THIS POSSIBLE.Check Details 2 cargador fronta 950 h cat. Cat industrial engine for drilling machineHii i have some code in my truck code 1142 and engine derate in 10 Findbestautomotive volvo“level 1 engine derate” how far can i drive with that on the dashboard.Aug 29, 2021 · So recently in the past few weeks I have been noticing odd regen frequency. They come and go throughout the day and what it looks like is the DPF soot load is not getting above 33%? Some times it doesn’t even get above 23%. Right now, I am driving a consistent 65 and it’ll raise to 23 and then drop back down to 17 to 19. There are no codes at all just a check engine light and 25% derate 3 hours service now light Serial number is *****. Technician: cumminsdr. Well if the check engine is on then there are fault codes that will tell you and direct you on what is causing the issue. I suggest you either have the shop recheck their work or go to a Cummins service ... Level 2 engine derate cummins, Check engine light with msg: Low DEF Quality came on. Dealer said it was intermittent and no problem however running engine to extend slides stop engine light came on with msg: de-rate. Cannot get RPMs above 10. Dealer said they had replaced DEF, replaced sensor and filter, cleaned nozzle. Was told to shut off all power - DC and AC then restart ..., , Recently it's started derating itself after prolonged time over 20psi of boost, probably about 10-20 seconds. It doesn't throw any codes at all. But, the over head dings and says "see dealer now" and "service required". Then after the load is off the engine it goes back to full power until over 20psi of boost is held over 10 or so seconds again ..., Description. The QSK60 is a V 16-cylinder engine with a 60-litre displacement. This Quantum series utilizes sophisticated electronics and premium engineering to provide outstanding performance levels, reliability, and versatility for Standby, Prime and Continuous Power applications. This engine has been designed in facilities., In this article, we will go over some steps you can take to troubleshoot and repair the possible causes of 5mph derate on a Cummins ISX engine. Check for fault codes: Using a diagnostic scan tool, check for any fault codes that may be causing the derate mode. These codes can help to identify the specific issue with the engine., , DEF low level light on with 3/4 tank. ... i have a cummins isb 6.7 with codes 3543 NOX limits have been exceeded due to poor def quality. and o have code 3582 aftertreatment 1 scr conversion efficiency. valid data , ... I have a 2013 freightliner with a DD15 engine & the check engine light is on & derate power. it has codes 5246-0, 5246-15 ..., Call Cummins Care at 1-800-CUMMINS (1-800-286-6467), and representatives will be available to answer product questions and provide assistance during a repair or service event for your operational or service needs. Cummins Inc. Box 3005 Columbus, IN 47202-3005. U.S.A. 1-800-CUMMINSTM (1-800-286-6467) cummins.com., Engine Protection Exhaust Stack Temperature 1 and 2 Torque Derate Enable When either of these is enabled, the engine will experience a speed or torque …, G-Drive Engines. Mid-range (1.3 - 9L) medium-horsepower engines (16 to 476 hp), providing the broadest Tier 3 range which further reduce Tier 2 NOx levels by 38%; Heavy duty (11 - 15L) 415 to 755 hp engines powering commercial operations, Emissions Derate Exemptions. Cummins EPA 2013 and newer diesel engines for fire and emergency vehicles should not experience any emissions-related vehicle speed or engine torque derates. To determine if there are calibration updates applicable to your engine, contact Cummins Care at 1-800-DIESELS™ (1-800-343-7357) with your Engine Serial ..., Problem is, that doesn't always work and it takes dealer-level scanning tools to work with the big-rig computer ports. 03-13-2020, 05:29 PM #11: rrtribble. Senior Member . ... 02 isb 5.9 derate: po8a50: Cummins Engines: 3: 10-09-2017 02:16 PM: 3126B "Derate" on grades 2001 Fleetwd Disc: DarrylandShi: Caterpillar Engine Forum: 6: 01 …, For example, if the manufacturer rated the genset at sea-level and 25C, but you are at 400 meters altitude and 30C: The change in pressure from sea-level to 400 meters results in 95.5% oxygen ..., I had a tough one to deal with. A 2013 F650 with a 6.7 ISB CM2350 in for an engine derate, both amber and the red engine lights on. Aside from an EGR valve hanging open there were about 8 fault codes for data update time from the aftertreatment modules, DPF level sensor and the turbocharger actuator., DEF low level light on with 3/4 tank. ... 2018 Peterbilt 579 with MX13 Paccar Engine- Engine in Derate mode with fault codes P1515 & P006B. ... i have a cummins isb 6 ..., Here's What you do. Park, e brake on, start engine and let it idle for 2 hours. Turn key on for 10 seconds or more then start engine. Hold the regen button and it should go into regen mode. Once idle returns to normal turn key off, wait about 5 minutes and fire it up. You should be good to go at this point., How to fix Cummins 5mph derate and what is it? OTR Performance. 20.8K subscribers. Subscribed. 656. 126K views 4 years ago. Read more: https://otrperformance.com/blogs/quic... OTR Reset Tool..., Take your small business brand to the next level at BrandSmart 2023 with insight from more than 300 brand marketers across every industry. Growing the brand of your small business ..., uncompromising level of technical support and after sales service, delivered through a world class service network. This engine hasbeen built to comply ... Cummins G-Drive Engines. Asia Pacific . 10 Toh Guan Road #07-01 . TT International Tradepark . Singapore 608838 . Phone 65 6417 2388 . Fax 65 6417 2399., An engine derate means that the computer software controlling the car’s engine restricts the automobile’s power and speed. It is intended to safeguard you from inflicting harm to the engine. However, engine deterioration, referred to as derating, might be pretty advantageous in some circumstances. It enables a longer engine lifespan by ..., 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:..., Satisfied Customers: 3,031. Experience: International and Isuzu trucks , International, Maxxforce, Cummins and Isuzu engines, Diagnostic and electrical troubleshooting specialist , Hvac and truck /trailer refrigeration troubleshooter. Verified. Andy and 87 other Medium and Heavy Trucks Specialists are ready to help you., power.cummins.com ©2017 Cummins Inc. | D-6203 (08/17) Altitude and temperature derate multiplication factor 1.2.3 Barometer Altitude Table A In Hg mbar Feet Meters Derate multiplier for all operation modes , The derated power of the engine is determined according to the equation below. A level one fault indicates that the coolant temperature of the engine is less than 255 degrees Fahrenheit. The derated power of the engine is 70 percent of its rated torque. In Level 2 fault conditions, the coolant temperature is less than 238 deg F. The time taken ..., ¹ Derating guidelines: Natural Gas: Engine power available up to 762m (2500 ft) at ambient temperatures up to 40 °C (104 °F). Above these elevations derate at 4% per 305m (1000 ft) and 2% per 10 °C above 40 °C (104 °F). Propane: Engine power available up to 1005m (3300 ft) at ambien t temperatures up to 40 °C (104 °F)., Electric inline fuel pumps are divided into two categories: carburetor and fuel injection. Carbureted engines require low pressure — typically 10 PSI — and enough volume to maintai..., Typical stable lifespan of diesel is 12 – 16 months in ideal conditions. Diesel sulfur content reduction (ULSD) limits fuel’s anti-microbial properties. Bio-diesel blending may reduce fuel stability (up to 6 months), promotes water absorption and biomass growth. Diesel fuel quality critical to equipment operation., Selective Catalytic Reduction (SCR) Engines Engine controls the production of particulate matter (PM), thus limiting it within the permissible value, while SCR is an exhaust after treatment device to reduce NOx. SCR spreads aqueous urea solution (AUS 32) into the exhaust stream. Ammonia from AUS32 combines with NOx in presence of catalyst to …, Designed and tested for military applications, the model DQBPU uses PowerCommand Control and offers significant operational advantages for all military services. It can run on multiple fuels (JP-8, JP-5, Jet A, DF 1,2), operate in wide temperature range and delivers excellent power quality. DQBPU is an integrated power options in a mobile ..., 198 posts · Joined 2013. #3 · Jan 7, 2014. Yes a CEL can cause the engine to go into a detuned mode. Had CEL's on my previous diesel truck and noticed the lack of power while pulling. 2013 White Ram 2500 SLT Bighorn, CTD, CC, LB, Andersen 5th wheel hitch, RWD. Save Share., There are no codes at all just a check engine light and 25% derate 3 hours service now light Serial number is *****. Technician: cumminsdr. Well if the check engine is on then there are fault codes that will tell you and direct you on what is causing the issue. I suggest you either have the shop recheck their work or go to a Cummins service ..., Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 6255 PID: SPN: 1569 FMI: 15 Engine Protection Torque Derate- Data Valid But Above Normal Operating Range- …, Try turning the key on and off 8 times. On the 8th time leave on until it goes through it’s checks then start the motor. Sometimes it’ll reset the derate and turn it off. I have a 2015 peterbilt 579 with a Cummins in it.