P1050 duramax

Jul 13, 2024
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For the Chevy Duramax Diesel, the code P20B9 indicates an issue with the DEF reservoir heater. More often than not, it will be the heater itself that must be...CEL on, DEF light on, DIC states Exhaust Fluid Empty and 500 miles until 65 max speed. DEF tank is full. Code reads P1050. This also occurred at 21000 miles and at 44000 miles, but truck reset itself.244 posts · Joined 2009. #4 · May 8, 2009. From the early 1960's until the owners death in 1999, Interarms of Alexandria VA imported firearm models from multiple …Hydra-Matic 6L90 six-speed automatic (6.0L) Allison 1000 six-speed automatic (6.6L) Final Drive Ratio: 3.73 (6.0L and 6.6L); 4.10 (6.0L) Chassis / Suspension. Front Suspension: Long- and short-arm independent front torsion bar suspension. Rear Suspension: Semi-elliptic three-stage multi-leaf spring. Steering Type:Rockauto sells them for $627. the service department said they are swamped and they would also have to order the part. the 2017 and newer DEF tanks don't even need to be removed to change the pump, its on the bottom, quite easy to do for anybody with a bit of mechanical experience at all. i told the dealer i could do it myself if …Unclip the DEF injector line. Disconnect the electrical connector to the injector. Push up on the white clip with a big flathead screwdriver while sliding the injector off. At this point, the tank cover and shield can be dropped. Disconnect the harness from the pump. After the tank cover and shield are dropped, disconnect the harness from the pump.This list has been updated to includes Chevy/GM Duramax diagnostic trouble codes. At Thoroughbred Diesel we are a real diesel performance and repair shop that offers free advice. Call us at 1-859-737-4966 with any questions you may have about your diesel. We are a authorized Cummins dealer, call us for diesel parts:DEF tank is full. Code reads P1050. This also occurred at 21000 miles and at 44000 miles, but truck reset itself. I now have 52349 miles and this time it did reset. Took it to my dealer and they replaced "Reductant Fluid pump sensor assembly (GM part #84545446 module kit) under power train warranty.The most likely cause for the fault code P1050 in your 2017 Chevrolet Duramax is a fault with the reductant/ exhaust fluid tank level position sensor. When this sensor fails the entire pump and sensor assembly have to be replaced. This can cost over $400 to have it replaced. The other issue I have seen is broken wiring leading to the top of the ...2015 GMC 2500HD denali 6.6 duramax 285/55R20 nitto trail grapplers 22" fuel maverick wheels Ppei tune Full deletes 5" mbrp full straight exhaust 5-6" mbrp stainless exhaust tip Amp research power steps plug and play HID 5k. Save Share. Like. Sort by Oldest first Oldest first Newest first Most reactions. 1 2 3.Inspect the fuel pressure sensor electrical connector for corrosion or damage. ⇒ It may be necessary to use the terminal test kit with dielectric grease on it and apply/drag each terminal a few times. Correction. 5652223. If you see a suspect terminal, it may be necessary to removal said terminal and inspect for corrosion, damage and/or signs ...Rather than accepting that its strategy is pushing Taiwan further away, China is blaming cheating, foreign forces, and fake news for president Tsai Ing-wen's win. There’s little do...188 posts · Joined 2012. #1 · Nov 5, 2013. Hey guys-. So yesterday the Duramax was totally dead. I kept getting code U0105, and the ECU fuse would blow every time I would turn the key. Cranks, no start. I isolated it to the wiring harness, and sure enough there was a spot where a metal bracket had worn through the wiring harness.Lincoln Diesel Specialties. "Quality Parts and Service at an Unbeatable Price" . Click Here: Lincoln Diesel Specialties . Or call us... 920-361-7700 . Click here: LB7 Injector replacement instructions . SOLD. 2001 GMC Sierra 2500HD, CC,SB. EFI Live V2 w/dsp5 MAX EFFORT by Idaho Rob, EGT's Never higher than 1150* :thumb.6.6LV-8 Duramax Turbo Diesel (L5P) — Sierra 1500 2020 2021 3.0LTurbo Diesel (LM2) Sierra 1500 Limited (RPO J21, VIN Digit 5 = 8 / 9) 2022 2022 Sierra 1500 New (RPO J22, VIN Digit 5 = H / U) Sierra 1500 2023 2023 3.0L Diesel (LZ0) Sierra 2500/3500 2019 2023 6.6LV-8 Duramax Turbo Diesel (L5P) Terrain 2018 2019 1.6L Diesel (LH7) Yukon 2021 2023 ...2016 Chevy Colorado 2.8L Duramax replaced DEF pump/heater a week ago which came from junk yard and truck still limited to 55mph and dealer said not pulling enough amps. So I purchased a brand new DEF pump/heater which is part 8452-6247. My brother in law installed it. He has scanned computer. He forced the truck to do 3 regens.Or look at the parts diagram on a GM parts site to see the setup. My truck had P026D and Chevy was clueless. They changed both NOX sensors and the the MAF sensor, cleaned the MAP sensor. Finally did a fuel filter change, fuel filter housing clean and flushed the fuel line with 2-3 gallons of fuel.To diagnose the P018B Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.L5P fuel rail pressure issue. Had this issue for about 4 weeks now, random instances of P1089 code. Since then I replaced the fuel pressure sensor since some said it could be a faulty sensor. Still coding but only after a long deceleration period. I have a CT3 and have tried to data-log when it happens but of course it doesn't happen while ...DEF Tank Wiring Harness Pinout Change February 24, 2022 After replacing the wiring harness on the Diesel Exhaust Fluid (DEF) tank on some 2020-2022 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks equipped with the 6.6L Duramax diesel engine (RPO L5P), several DTCs may set. DTCs P20B9 (Reductant Heater 1 Control Circuit) and P20C1 ...Duramax 6600; 2500HD/3500 HD Trucks & Drivetrain; Duramax Diesel Performance Shop; 2500HD/3500 Accessories; Other Diesel & Truck Related Forums. Chevrolet & GMC Colorado/Canyon Duramax Diesel; Chevy Cruze Diesel; General Diesel; Diesel Conversions; Diesel Fuel, Bio-Diesel & Fluids Forum; Industry News; GM Medium-Duty; 6.0L & 8.1L 2500HD/3500Hydra-Matic 6L90 six-speed automatic (6.0L) Allison 1000 six-speed automatic (6.6L) Final Drive Ratio: 3.73 (6.0L and 6.6L); 4.10 (6.0L) Chassis / Suspension. Front Suspension: Long- and short-arm independent front torsion bar suspension. Rear Suspension: Semi-elliptic three-stage multi-leaf spring. Steering Type:2023 Chevy Silverado 1500's 3.0-Liter Duramax Gets a 10-Percent Power Bump Updated oil-burner brings 305 horsepower and 495 lb-ft of torque to select 2023 half-ton Silverados. KJ Jones Writer ...Hydra-Matic 6L90 six-speed automatic (6.0L) Allison 1000 six-speed automatic (6.6L) Final Drive Ratio: 3.73 (6.0L and 6.6L); 4.10 (6.0L) Chassis / Suspension. Front Suspension: Long- and short-arm independent front torsion bar suspension. Rear Suspension: Semi-elliptic three-stage multi-leaf spring. Steering Type:There is no procedure to prime the system, if any repairs have been done the codes need to be cleared if any and a reductant quality test need to be done. Codes i was getting p20ee,p207f, and p1048. I have replace the no.2 nox sensor and the pump. I am still getting the codes and the check engine light. Now using my scanner to do a leak test i ...Labor: 1.0. The cost to diagnose the P1050 Cadillac code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.We would like to show you a description here but the site won't allow us.Download specifications for New Holland P1040. Learn more about New Holland, P1000 Series Air Cart Specifications, P1060, P1030, P1050, Model, Dimensions, Tires, Page 1 of.Chevy and GMC Duramax Diesel Forum. 3.8M posts 209.5K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Show Less . Full Forum Listing ...Check Engine Light Came on. Checked with code reader. Says P1050 anyone knows what this is??? TIARunning fleece performance tuning with full 5 inch flo pro exhaust and cai by s&B running dry filter medium. I keep throwing the P0101 code for the the MAF sensor. I thought st first it was due to finding out that my filter had come off the clamp. I reclaimped it and cleared the code with my edge insight. It has come on and off several times ...Rockauto sells them for $627. the service department said they are swamped and they would also have to order the part. the 2017 and newer DEF tanks don't even need to be removed to change the pump, its on the bottom, quite easy to do for anybody with a bit of mechanical experience at all. i told the dealer i could do it myself if they were busy ...Who Won the Space Race? - Who won the space race? Find out why it's difficult determine who won the space race and what accomplishments both NASA and the Soviet Union made. Adverti...Condition As part of our ongoing quality improvement efforts the 2017 6.6L Duramax Diesel NOX1 Sensor (Part Number 12676705) and NOX2 (Part Number 12676706) have been placed on a parts restriction through the Product Quality Center (PQC). This parts restriction will assist Engineering with product feedback.P1050 code happening on my 2019 Chevy duramax, I changed my def pump about 3 weeks ago and it worked fine, filled the tank up but then a week ago I got that code saying my tank needed to be filled up …2 posts · Joined 2016. #1 · Feb 27, 2022. So at this point we are seeing a p0205 code again with reduced power. First time this happened the truck had 102,000 miles on it. Took it in to get it repaired. Replaced cyl 5 injector and kept on driving. Used local Chevy house for all parts needed.Open TIS on the computer used to program the vehicle. Select and start SPS. Select Settings. Select the Warranty Claim Code tab. The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. If the code is retrievable, dealers should resubmit the transaction making sure to include the code in the SPS ...P1050 Volkswagen Code - Bank 1 Camshaft Adjustment Valve 1 Open Circuit. How to Fix. Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.In This video I go through all the steps to troubleshoot Poor Quality DEF Warning.Drew92 Discussion starter. 216 posts · Joined 2011. #1 · Jan 1, 2013. Here recently my truck has been throwing P0088 Rail pressure too high codes at random. I have been trying to figure out a pattern for when it happens, and it seems like it only happens when I am slowing down and almost at idle. Truck runs great and I just can't figure out ...Sensing and diagnostic module (SDM) As a practical matter, one, or all of the control modules listed above will set trouble code B1325 when one or all of them detects a battery voltage that falls below 9 volts for longer than 5 consecutive seconds. When this occurs, the control module that first detects the fault condition will prevent the ...In a previous video (link below) I detailed the service regeneration procedure. This video shows you the diesel particulate sensor (a.k.a. Particulate Matte...Perform the following steps when encountering a P2610. Turn the IGNITION OFF for 90 seconds. Unplug both the engine control module (ECM) connectors for 90 seconds. After 90 seconds has passed, re-install the ECM connectors. With the ignition on use the Tech2 and clear all codes in the ECM.Chevrolet Colorado 2016 2018 LWN Engine-Diesel, 2.8L Cruze 2017 2018 LH7 Engine-Diesel, 1.6L Express 2017 2017 LWN Engine-Diesel, 2.8LGet ratings and reviews for the top 12 lawn companies in Warren, MI. Helping you find the best lawn companies for the job. Expert Advice On Improving Your Home All Projects Feature...Background: Early 2017 L5P with approx. 75k miles. Warrantied both batteries around 2019 (dealer) and bumped up to the larger 48 GHR, slightly more cca than originals. Replaced again separately in 12/20 (was carrying a spare I bought over counter) and then the other on 6/21 (by dealer).Just to add, P1050 is a DTC for Reductant Level Sensor Invalid Range, meaning the ECU sees a value for the sensor that's not in it's expected range. Rivergoer and nmunlin. 6speedTi. 447 posts · Joined 2018. #8 · Dec 17, 2021.GM 2.8-Liter I4 Turbodiesel Duramax LWN Engine DEF GuideDurabiopwr. 250 posts · Joined 2021. #2 · Dec 15, 2022. P100b appears to be turbo actuator issues. P2002 could have been related to the plugged up map sensor. Air ratio off if its plugged up. Might go away if map sensor replaced. But if turbo actuator messed up its gonna make more smoke too and plug dpf. 2020 GMC 2500 CCLB work truck pkg.L5P fuel rail pressure issue. Had this issue for about 4 weeks now, random instances of P1089 code. Since then I replaced the fuel pressure sensor since some said it could be a faulty sensor. Still coding but only after a long deceleration period. I have a CT3 and have tried to data-log when it happens but of course it doesn't happen while ...The NOx Catalyst Reductant-Load Adaptive Value can be found in the Reductant System Data list in GDS2. This feature is the ECM’s way to “close the loop” on the NOx Reduction System. The NOx Reduction System consists of the diesel exhaust fluid, DEF dosing hardware (Emission Reduction Fluid Injector, Emission Reduction Fluid Exhaust Front ...1 post · Joined 2022. #41 · Oct 27, 2022. Same issue, 2019 L5P Duramax 2500HD. 51,000mi, ran the DEF Low and got the engine light via P1050 Reductant Level Sensor Invalid Range, (Replace Diesel Emissions Fluid (DEF) Module, parts are $1,123.00. ouch!.Obviously p205b is reductant tank temperature sensor range/performance. Dealer says they need to order a new tank/pump Assy. Also reflashed with the latest updates. Hopefully I don't start getting frequent regens or something else goofy. 2011 chevy 3500hd cc 4x4 drw ltz loaded with snowplow prep.Chevrolet Silverado 2500 HD LTZ Crew Cab Pickup. The LML Duramax shocked its rivals when it was revealed, offering 397 horsepower and 765 lb-ft of torque while simultaneously lowering emissions and improving fuel economy. A new, improved engine block casting was used. GM increased oil film thickness by changing the main bearings' profiles.This video shows how to replace the DEF tank heater (Reductant Tank) on a LML Duramax '12-''16 GMC/ChevyHere is a Bulletin showing extended coverage for this...2018 2500 L5P FYI this is a different DEF tank/pump/module than 2016 and earlier. Fault P1050 Reductant Level Sensor Invalid Range. I do not have anything saying DEF level Low except info display, Autel and GDS shows def level as "malfunction".2015 GMC 2500HD denali 6.6 duramax 285/55R20 nitto trail grapplers 22" fuel maverick wheels Ppei tune Full deletes 5" mbrp full straight exhaust 5-6" mbrp stainless exhaust tip Amp research power steps plug and play HID 5k. Save Share. Like. Sort by Oldest first Oldest first Newest first Most reactions. 1 2 3.Duramax Diagnostic Trouble Codes . On-Board-Diagnostic (OBD) trouble codes are one way your vehicle communicates with a mechanic. Every diesel vehicle built since 1996 has an OBD II computer system that monitors and identifies issues. In particular, it looks for issues that may result in harmful and polluting emissions from exhaust gases.I’m needing some help getting a P1050 with intermittent dashes on the def gauge. Ohmed the pump and wiring everything is within specs and the connectors and pins are all in good shape. I can’t find much information on the P0422 but I know it’s a can issue so I’m not sure if that could be causing the def level issues.Apoling135. Jul 18, 2022. 22. 10K. Aug 9, 2023. by JonM21Ltz. 1 1 of 4 4. Postings of Tech Service info for any New L5P engine issues.3.3 Advanced printing using the printer driver settings. 3.3.1 Priority of printer settings. 3.3.2 To change printer driver settings for Windows. 3.4 Using the Basic printer driver settings. 3.4.1 To print multiple copies of a document. 3.4.2 To reverse the order the pages are printed. 3.4.3 To set the orientation of the page on the paper.My truck engine light came on so I had it diagnosed at Orileys parts store. It's throwing the code P1050 but has no problems Code. Mechanic's Assistant: I understand that your trucks engine light came on and you received the code P1050, but youre not experiencing any problems; our Chevy Mechanic will be able to help you further with this issue. Have you noticed any specific issues or issues ...With 181 horsepower and 369 lb-ft of torque the 2.8L "Mini-Duramax" is the ideal choice for Colorado or Canyon owners that will be towing or carrying loads in the bed. Fuel economy is also very impressive, with up to 22 mpg in the city and 30 on the highway for 2 wheel-drive models. This Inline-4 cylinder duramax diesel engine is also one ...Who Won the Space Race? - Who won the space race? Find out why it's difficult determine who won the space race and what accomplishments both NASA and the Soviet Union made. Adverti...After performing an initial leak test three times, if low pressure is present, this may be because the DEF pump filter has dried out. Allow the vehicle to sit overnight with the new pump and DEF fluid to re-saturate the DEF pump filter. In the morning, perform the leak test three additional times. The pump should now be able to build pressure.Power and performance. According to Chevrolet, the 6.6-liter Duramax turbo diesel features eight cylinders with a displacement of 403 cubic inches and comes equipped with a turbocharger for added ...Limp mode P1050 P1060 code and VVT wiring location. E82, 120i Sport, 05 plate. No doubt a common thing but the car goes into limp mode every now and then and throws up the half yellow lit EML. When starting the car later the EML can remain half lit but limp mode goes away and it drives again. Have read the generic code P1050 and P1062 which I ...Common problems with Duramax diesel engines include air in the fuel lines, fuel starvation, water pump failure, overheating, injector failure and harness chafing. Some of these iss...Red675 Discussion starter. 92 posts · Joined 2013. #1 · Mar 31, 2015. CE light came on over the weekend and pulled code P11CB. Appears to be related to the NOX sensor. Light went off this morning after approx. 5 drive cycles. My question is: I'm getting ready to delete, is it worth taking it to the dealer to get fixed or just let it be?284 posts · Joined 2009. #1 · Oct 16, 2009. Ok, I was driving and the check engine light came on. I called On Star and they said that the truck was misfiring. I then went to Auto Zone and they scanned it and it came up with code P0305, I know that this is a misfire on cylinder #5. They said they could not clear the code.The P1050 that's active is the major code here, it's for the level sensor being in an invalid range. I see this happen due to one of two reasons, when the tank was ran low (which can then be cleared using a process with the dealer scan tool), or when the level sensor itself has failed. It sounds to me like it is your level sensor itself that ...I hope you find your peace, somewhere in this mess, in a song on the way to work at the hospital, in a light-hearted conversation with a patron at your... Edit Your Post Published ...Step 1: Ensure That You're In A Safe Environment. When dealing with a forced induction system like the one on your Duramax, you need to be aware of the insane amount of heat the engine could generate. Hence, make sure to work when the engine is cool. Then simply try to locate the boost control solenoid.In This video I go through all the steps to troubleshoot Poor Quality DEF Warning.GM 2.8-Liter I4 Turbodiesel Duramax LWN Engine DEF GuideIf you want to know what’s going on in Cairo, just look at the walls. Over the last two years, as clashes and political conflict were raging on the streets of Cairo, another war wa...2017 GMC 2500HD Duramax Diesel Denali. Answered in 1 minute by: Daniel Chaidez. Daniel Chaidez, Technician. Category: GMC. Satisfied Customers: 14,021. Experience: Technician at Global Auto Repair. Verified. Good Afternoon, my name is ***** ***** ill be helping you, so sorry to hear about the issues here on the GMC.It threw the code P0191 Fuel Rail Pressure and went into limp mode/reduced power. I took it to the dealership and they put a new sensor and wiring kit in it. Didn't fix the issue. It throws the code 3-6 times a day and goes into limp mode. I left it in the shop for three days but they couldn't find anything wrong with it.The P0150 code is triggered when the Engine Control Module (ECM) fails to properly detect activity from the O2 sensor. The O2 sensor transmits a voltage in relation to the amount of oxygen in the exhaust. This voltage is indicated by a value typically between .1 to .9 volts. The value of .1 means the engine is “running lean” and has too ...with the P140C code that code is just saying the EGR flow is reading excessive. nothing that will leave you stuck or stranded at all. it will be just fine for the drive home for the shop to look at it and will not hurt anything or break down on you. you can always get me back for FREE for any follow up any time with this question even after you ...101 posts · Joined 2016. #1 · Apr 4, 2017. Anyone know what a p1050 code is just got it tonight cleared it for time being just need to know if I need to take my truck to the dealer. Sent from my iPhone using Tapatalk. 2016 Z71 DURAMAX.Reductant tank heater 1 is a common failure causing vehicle to enter limp mode, requiring DEF tank reservoir replacement.Duramax P21DD P20B9#automotive #cars...64K views 16 replies 7 participants last post by theb_dot15 Oct 3, 2014. tjlakia Discussion starter. 908 posts · Joined 2010. #1 · Aug 18, 2011. I have the following code. P0650: Malfunction Indicator Lamp (ML) Control Circuit.

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That Inspect the fuel pressure sensor electrical connector for corrosion or damage. ⇒ It may be necessary to use the terminal test kit with dielectric grease on it and apply/drag each terminal a few times. Correction. 5652223. If you see a suspect terminal, it may be necessary to removal said terminal and inspect for corrosion, damage and/or signs ...

How 3. 2019-2023 Duramax LM2. The baby Duramax, as it is known, is also a top contender, especially if you don't need maximum power. This 3.0L I6 turbodiesel produces 277 horsepower and 460 lb-ft of torque. With an EPA rating of 26 mpg combined, it's also the most efficient. The LM2 engine is no slacker.5118 posts · Joined 2017. #2 · Aug 27, 2017. That means that 6+ weeks ago when you asked about codes P1050 & P1061 (now P1062) it would have been a good idea to checkout your VVT (Valvetronic) system. I'm NOT trying to give you a hard time, "just sayin." As I stated at that time, neither of the first two codes are identified in Bentley, but ...

When Jun 10, 2022 · It threw the code P0191 Fuel Rail Pressure and went into limp mode/reduced power. I took it to the dealership and they put a new sensor and wiring kit in it. Didn’t fix the issue. It throws the code 3-6 times a day and goes into limp mode. I left it in the shop for three days but they couldn’t find anything wrong with it.Labor: 1.0. The cost to diagnose the P1050 Cadillac code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most …Check engine light has been since I bought the truck. I used the CTS2 to read the code, which was p0128. P0128 is the code for your thermostat which is most ...…

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candyland parade float ideas Drew92 Discussion starter. 216 posts · Joined 2011. #1 · Jan 1, 2013. Here recently my truck has been throwing P0088 Rail pressure too high codes at random. I have been trying to figure out a pattern for when it happens, and it seems like it only happens when I am slowing down and almost at idle. Truck runs great and I just can't figure out ... ranada lyricsgainesville dmv appointment Remove the outside cover (four bolts) and the bolts that attach the def fluid tank skid plate to the frame (three bolts). Remove the tank straps (one bolt on each). Now the tank is held up by two L shaped brackets with two studs on each protruding though the frameand two nuts inside of the frame rail. Access these nuts through holes on the ...Step 1: Ensure That You're In A Safe Environment. When dealing with a forced induction system like the one on your Duramax, you need to be aware of the insane amount of heat the engine could generate. Hence, make sure to work when the engine is cool. Then simply try to locate the boost control solenoid. landon mcbroom new girlfriend 2022extend cargo shade camaroaucar head unit Ron Nielson. 10785 posts · Joined 2009. #2 · Jan 12, 2022. Lots of reading material for you here; P2138 - Chevrolet Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis. Ron Nielson - Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different. 2008 Silverado LT, Crew Cab, 2WD,LB. new braunfels offset smoker It also offers impressive towing specs with a max tow capacity of 9,500 lbs on pickup trucks and 8,200 lbs on SUVs. Despite having a lower maximum towing capacity than the 5.3L V-8 or 6.2L V-8 gasoline-powered engines, the 3.0L Duramax still has one significant advantage. It reaches 95% of peak torque at only 1,250 rpm. vzw outage mapvoid egg no mans skyps5 you're restricted from using communication features Code P208A Information for Specific Makes. P208A Buick Reductant Pump Control Circuit. P208A Cadillac Reductant Pump Control Circuit. P208A Chevrolet Reductant Pump Control Circuit. P208A Dodge Diesel Exhaust Fluid Reductant Pump Control Circuit Open. P208A Ford Reductant Pump Control Circuit/Open. P208A GMC Reductant Pump Control Circuit.2017 L5P Duramax Code P026D. For those folks who may have the check engine light come on and the following code comes up: P026D, I want to let you know that, for me, it was the MAP sensor being dirty. It has happened twice in the last few months, and I have been able to clear the code by cleaning the sensor.