Duramax injector codes. Also drove the 40 to 70 deceleration 20 times. Touch another wire to ground and then to the command circuits Pin 1 for injector #4; Pin 4 for injector #1 : Pin 59 and 60 for injector #6 ; and pin 61 and 62 for injector #7. and the year of the truck. Test the affected fuel injector control circuit for an open between the ECM and the fuel injector. Dec 22, 2019 · P1238 (This is what prompted the injector replacement from the beginning. That problem is sometimes caused by a loose connector at the injector. Troubleshooting P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208 on a Duramax L5P. ⇒ Torque the fuel injection fuel feed pipes fittings in alternating increments to 30Y (22 ft May 16, 2021 · Was there not a tag with the injector. 5 L DS Pump | 1982-1993 GM/Ford IDI 2011-2016 6. A malfunctioning fuel injector in Cylinder 5, an open or shorted wiring to the injector, and a bad PCM are three common triggers for the code. 6LV-8 Duramax Turbo Diesel (L5D) GMC Sierra 2017 2018 6. 6L Duramax injector for the LBZ plus late LLY engines – part number DT660003R – and the injector for the LMM engine – part number DT660004R – are marked with an injector quantity adjustment code (IQA) that must be entered into the Engine Oct 8, 2020 · Recently, when the weather turned cool (high 30s over night but still reaching 70-80 during the day) I began getting a CEL and the "cylinder 1 injector learning limit max" code P02CD only on start up. P0201 Injector Circuit Open Cylinder #1 VIN Code “1” LLY. Jan 15, 2020 · Hi guys my duramax is misfiring sometimes. Now it threw another code and I am taking it in to replace the injector in #8. Maybe someone els will chime in. Aug 13, 2020 · L5P Duramax 26 digit Injector Quantity Adjustment Code for flow rate programming. Select your injector 9. Feb 8, 2017 · If the vehicle had only injector circuit codes for P0202 or P0207 (with bank shutdown P2146 or P2149), and the wiggle test induces a P0202 or P0207 to reset, use bulletin number 05-06-04-047B to repair the injector connectors and install the injector harness support kit. This time, connector issue with a caution from the dealer if it reoccurs they will replace the ECM. Programmed the injectors to the PCM and did a injector reset learned values as well. Can the rig still pull or is it not advisable. The LLY's fuel injectors are also known to suffer from injector leakage due to issues with the nozzle or injector body. Jun 12, 2021 · That approach is a band-aid at best. None of the numbers in the pic make sense for flow rate because it needs letters. Feb 9, 2018 · On connector C1 : connector your headlamp bulb in series to terminal #3. On the calibration not sure… The diagnostic codes that are required by law on all OBD II systems are standardized and all vehicle manufacturers use the same common code list. This means the misfire code P0300 represents the same failure on a GM/GMC Duramax, Ford Powerstroke, or Dodge Cummins. I have looked pretty hard, but haven't seen much info on those codes. 6 L | 2001-2007 6. 5-2010 6. Feb 16, 2012 · Can anyone help me. Ave Eugene, OR 97402 541-485-1434 1/30/2019 https://oregonfuelinjection. The injectors should have a flow rate code on them from the factory and if modified should come with a new code. Failed injectors on the LLY specifically are also known to throw P0087 codes while loaded down or towing. Jul 28, 2013 · Reason being, a thread came up over at DP concerning an injector replacement on an LBZ and the associated code 0087, and another member referenced "reprogramming the ECM for the new injectors". When LBZ injectors begin to fail, the vehicle's onboard computer (ECU) may detect the issue and trigger the check engine light. 100 miles later same occurrence, limp mode and a multitude of warning lights. 6L LML – LGH Duramax PDF: 2011 – 2016 6. I replaced the accelerator pedal assembly, and same codes. I am curious how long I have before the injectors fail. com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. Here's a detailed look at Duramax injector types and their applications in vehicles such as the GMC 3500: Types of Duramax Injectors: LBZ Injectors: Specifically desi Nov 24, 2019 · The code is P01D1 which is for Cylinder #4 Injection Timing Performance -- Over Retarded. Duramax Diagnostic Trouble Codes May 11, 2012 · About us. If the wiring for any of the 4 injectors is compromised, all those cylinders will shut down. What Trim Codes Help Increase Diesel Engine Performance and Power? Mar 13, 2024 · The LLY Duramax engine, introduced in 2004, is known for its performance and reliability. If I have (another) problem on the road, I can simply unplug the injector connector and replace it with a new one in a matter of minutes. Mar 24, 2021 · So I had to swap ecms chasing a fuel temp code. LB7: Jump to Latest Hey i seen this post and i just bought my 01 duramax 179000 miles banks six gun with iq and speed loader banks intake and Hello, Have this duramax here can't seem to clear out the injector codes. wtf: They also found codes P246F and P242B and replaced #3 & 4 EGT sensors Jul 26, 2019 · The injectors are a notorious problem on the LLY, especially #2 and #7. Pulled codes P0202 (injector circuit, open cylinder #2) P2149 (fuel injection group B supply, injection circuit open) after messing with some wires truck started, and ran ok so I cleared the codes. Now I'm throwing codes p1224 throttle position sensor, and injector short circuit, p1233, p1239. All was good until yesterday; mileage now 6500 miles. Engine is low on power and downshifting a lot when driving. is it in the front of the back of a motor . 6LV-8 Duramax Turbo Diesel (L5P) Terrain 2018 2019 1. Now I am getting po2cd cyl 1 injector exceeded learning limit. Was the code P0207-? Here is some info I wrote and saved. Note: Must return old fuel lines to receive full core credit. 6LV-8 Duramax Turbo Diesel (L5P) Sierra 1500 2020 2021 3. It was failing the circuit test at startup. The Duramax P2149 code is a DTC code indicating a problematic circuit in the fuel injector. 99 These injectors are brand new from DENSO, They are the highest quality, most reliable injectors available for the 2017-2023 L5P engine. Jan 16, 2022 · Just bought my 2018 L5P with an active CEL P20CB code - aftertreatment fuel injector control circuit open. Okay 11. Injector Failure: LLY Duramax injectors can fail due to wear and tear over time. Im assuming this has to do with the firing pattern and would like to know what connector is and location of it. When I asked about this issue he stated the injector was a crappy design, and they see this often. Note: Leave the “F7” and add the trim code after it, when entering the code into the ECM. The control functions for the fuel injection system are integrated in the engine control module (ECM). Feb 9, 2022 · The P0205 code stands for “Cylinder 5 Injector Circuit Malfunction”. The location all depends on the manufacturer and the model. Oct 14, 2020 · Once codes reset took for test drive and code came back on injector 8. Oct 5, 2017 · My 2014 had the check engine light on last week, dealer found code P0420 and replaced the failed Indirect Fuel Injector under my extended warranty. 0L Diesel (LM2) Sierra 2500/3500 2019 2021 6. The Duramax P2149 Apr 17, 2016 · The shop told me injector 8 was firing a little hard but the knock sounds like it comes from the injector 1 or 3 area. Those come back as fuel management codes. 13. TECHNICAL BULLETIN . One Fuel Injector DTC Sets. com 6 Feb 9, 2018 · The truck first threw a CEL code P01DA in May, 2017, and the dealership found injectors 6, 7, & 8 "injector rates out of spec". Since the code P249D indicates less DEF injection to the engine, it probably has something to do with the engine’s DEF injection. These are the exact same GENUINE BOSCH ® injectors you would get from a GM dealer, at a fraction of the price. The glow plug wire feeding cylinder 8 was a little melted. Reprogram Injector Flow Rates 8. Select year 4. Duramaxdiesels. Since I drive easy most of the time the code has not returned. The ECM monitors the status of the voltage supply and voltage control circuits. Note the cylinders are numbered-- Passenger side -right-- 1-3-5-7, and driver side left-2-4-6-8. Mar 13, 2024 · Overview of Duramax Injectors Duramax injectors are essential components in diesel engines, with various types tailored for specific models like the LBZ. I asked a similar question about a year ago, and I was told that the cheapest way to go was with Bluedriver. I soldered 2-way connectors into the harness for #2 and #7 and made several pigtails with injector connectors. They are May 31, 2013 · FICM uses 2 separate circuits (banks) to fire the injectors. When in doubt, check the user manual to help you find the trim codes on your specific injectors. Come Oct 24, 2018 · Injector codes. ) After 8 new injectors, 1 injector harness, a brand new engine harness, a reman FICM, the problem was remedied with a new ECM. Bank 1 => 1,4,6,7 Bank 2 => 2,3,5,8 Clearly you have an issue on bank 2 somewhere (time to go over all the FICM wiring at alternator bracket and at injectors). Mar 15, 2021 · Looking for input on a scanner/tuner to read the injector balance and to install the new injector codes. VIN Code “2” 2006 LLY and LBZ Injector Confusion. Automatic ID 5. 99 Half Set (4) $779. While not the most common problem, the #4 fuel injector specifically is known to be problematic. While not as detrimental as a failure on the LB7. Feb 13, 2011 · injector codes. 25. Kurtz Sep 15, 2020 Aug 14, 2020 · The first Duramax V8 was introduced in 2001 and was given the code name LB7. 6L Duramax diesel engine (RPO L5P). The injectors are separated into the following four groups: Group 1-DTC P2146 with injectors 1 and 4 Apr 2, 2021 · Dealer replaced number 4 injector and cleared codes. Here are some common LLY Duramax injector issues: 1. 6L LML – LGH Duramax In order to do proper diagnostics you will need a scan tool, diagnostic service information and some special tools such Read more » Oregon Fuel Injection 4036 W 1. Showing injector circuit open cylinder 1 , 4, 6, 7 as well as fuel injector group A supply voltage circuit open. 5-2005 Chevrolet/GMC 2500/3500/4500/5500 6. May 28, 2021 · Recently got a code that indicates worn injectors. Tags: Duramax L5P injector connectorDuramax injector connector pin te Mar 12, 2024 · 6. Aug 25, 2024 · If you’ve seen the P249D code on your Duramax, you’re likely dealing with issues in your truck’s emissions system. P0380 Still working on this glow plug code, but I'm about sure i've found the culprit. If it is a LLY engine, a quick "Ice Pick trick" can fix the problem. I wrote down and confirmed in ecm and gpm the injector calibration #s in programming. Jump to Latest my 2004 Duramax Gen2, LLY throwing multiple codes p2149 p1296 p0090 p0102 p0700 p1249 p0202 Truck has ove 300,000 miles Nov 20, 2017 · Diagnostic challenges with a GM Duramax: Limp mode, fuel injectors, and the complexities of modern automotive technology explored in this story. To verify programmed injector flow rates: 1. OBD-II Check Engine Light Trouble Codes for the GM/GMC Duramax below: Sep 4, 2020 · 2011 LML Showing code for Injector Group B circuit failure, Injectors 2, 5, 6 and 7 are not functioning. 4L Powerstrokes. Jun 9, 2017 · I have a 2013 LML, I replaced the long block about 200 miles ago. st. 6L Diesel (LH7) Involved Region or Country North America, Israel Jan 28, 2024 · Hey, My engine has what appears to be a fuel injector knock. Program 12. Truck ran very rough on the way home and I limped it to the mechanic yesterday. I ran the codes and it popped 3 codes: P01CD, P01D2, P01D4. I only get the code if I am pushing the truck hard. Oct 23, 2022 · My 2020 Silverado 3500 Duramax diesel pickup has 27,000 miles. It threw a code about 800 miles ago and a dealer replaced the injector in #6. But the only code Jul 11, 2014 · 2011 lml duramax got to start working on the truck again the truck used to start with a wiff of ether and run smooth now after replacing 2 injectors i get 2146 2155 and i think it was 2152, also a p0606 which is ecm internal fault. is there a way to tell if it is the injector or just a wiring harness 2005 Gmc 2500 lly 6. Difficulty Starting or Stalling Feb 20, 2019 · If DTC P2146, P2149, P2152 or P2155 are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. then I found Henry's doc. 7. 2011-2016 6. Balance rates are crazy good. Also, if the previous owner did screw me(or his mechanic screwed him which in turn screwed me) I would think 236k miles would be a good time to replace all 8 injectors but I don't know how critical it is. Apr 14, 2017 · The ECM energizes each fuel injector by grounding the control circuit of that fuel injector. Each Injector includes O-rings and May 16, 2024 · Reduced power mode flashed up and screen displayed a message to service the emission system. It will be on 4 cylinders -- runs-- although not very well, and noisy. If the circuit and fuel injector test normal, replace the ECM. I thought it was BS, and said so. GM and some part stores have a connector repair kit to replace the injector connector. No sooner than 15 minutes of driving off the lot, my check engine light came on. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. An improperly sealed or damaged fuel injector line or fuel injector fitting, will cause a fuel leak. Just like you have-- The Power control module will sense the problem and include all injectors in group A, or group B, what ever the bad injector is on. The diagnostic codes that are required by law on all OBD II systems are standardized and all vehicle manufacturers use the same common code list. Sep 14, 2020 · LLY Injector Knock, Codes P1223, P1226, P1235, P1241 Jump to Latest 8K views 9 replies 3 participants last post by Col. I'm at a loss I don't see it being an injector and there's no mechanical issue. Injector 3 and 8 were replaced along with the pigtail. Duramax Turbo Diesel (L5P) Silverado 4500HD, 5500HD and 6500HD 2019 2021 6. This problem often involves the diesel exhaust fluid (DEF) injection or the reductant system in your engine. If QR code doesn’t work not sure what to say. The ECM monitors the status of the injector positive voltage control circuits and the fuel injector control circuits. Install the left side fuel injection fuel feed pipes (2). This will supply voltage to injectors #4; #6 ; #1; #7. Apr 21, 2016 · Tightening the terminal with an ice pick or other tool, will usually correct the problem and the truck will run OK. Scanner 2. . This code is set when the PCM detects that the injector’s voltage in Cylinder 5 doesn’t match its current state. On restart, I got the "cleaning exhaust filter keep driving” message. I can't speak to whether it will allow you to install the new codes, but it can read the balance rates. The engine becomes very shaky and various additional engine lights will appear such as Stabilitrak and ABS. I can't seem to find any info on causes of these codes. Let’s see a few other causes of this issue. Can someone educate me to why Apr 27, 2017 · 7. codes are supply circuit short or open on group 1 2 and 4 Jan 19, 2012 · Important: When installing a new fuel injector, ensure that the IQA data number from the yellow IQA Data Tag, shipped with the new injector, is programmed to the correct cylinder ⇒ If any injectors are replaced, go to Reprogram Injector Flow Rates parameter and enter the flow rate number of the new injector to the corresponding cylinder. It does have the emission delete DPF whole exhuast system deleted. The injector connector for the #4 injector is known to go bad and send the L5P into limp mode with a P0204 engine code. However, there’s more to it. I have 250k miles but we do occasionally pull a 41ft toy hauler. 5-2005 (LLY) Injector Circuit Open Code Drive 15 miles check/clear codes. This was at a mileage of 2317 miles. Fuel Injector Failure. The injectors are separated into the following four groups: Group 1– injectors 1 and 4 Jun 2, 2021 · 3. I took that as a good sign, since the system was working. 99 Singles $199. Can't seem to relearn the injectors. The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency. Jul 22, 2021 · Several injector timing-related DTCs may be set along with an illuminated Check Engine light on some 2017-2018 Silverado and Sierra models equipped with the 6. Check Engine Light (CEL) with Injector-Related Fault Codes. 6. Chevy / GMC Duramax 2017+ L5P Forums. Duramax LBZ + LMM Injectors FI-348 July 2017 The DTech remanufactured GM 6. Every injector i ever did had a tag or paper with the number on it. However, like any engine, it can experience certain common injector problems over time. L5P 2017-2023 Chevrolet/GMC 2500/3500 6. But there shouldn't be that large of a difference between balance rates on new injectors unless you have other issues such as low compression. We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. Dec 3, 2020 · I just bought a used 2019 Silverado with the L5P motor. Now I have codes: P0207, P0300, P11FF, P2A00, and still P157A. Test the affected fuel injector for high resistance. Follow instructions to turn key off and disconnect scan tool for 2 minutes. Select make of Vehicle 3. Apr 1, 2014 · I was stuck along the road yesterday after my truck went into limp mode & check engine light come on. You must know the code's reasons to solve the issue. Cylinder 5 compression is 380 (tested hot). is the seventh and injector on the or passenger side. Confirm vehicle information 6 Nov 20, 2011 · It is best to list the codes. ( #6 and #7 have to command circuits) May 8, 2024 · My 2011 Chevy 2500hd all of a sudden has 3 fuel injector codes p0266 p0278 p0281 after I changed the engine coolant thermostats and temperature sensor properly and an over-torqued fuel injector line may damage the fuel injector fitting. Mar 29, 2007 · Duramax Second Generation: 2004. I've cleaned the connections on the injectors and the ECM. I disabled each injector individually and determined 1, 3, 4 & 8 are in working order. 6 Diesel Vin Code "2" LLY BOSCH ® /GM OEM Remanufactured Fuel Injectors GM Part #s 97303657, 97780144 BOSCH ® Part # 0 986 435 504 BOSCH ® OEM LLY injectors. LLY 2004. 6 Feb 27, 2019 · The injector is then held open with this high voltage. In mid 2006 the Duramax changed, and with that change brought some Jan 25, 2022 · Some Bosch common rail injectors have the trim code marked on the top of the plastic housing, or on the coil of the injector. That code could be put in with a tech 2. As it must be causing the problem. Each injector's flow rate information and cylinder position are stored in the memory of both the glow plug control module (GPCM) and the ECM. 2004. Walter E. Use an OBD-II scanner to retrieve any injector-related fault codes, such as P0201 to P0212 (injector circuit malfunction). Enter code from on top of the injector 10. I understand injectors 2 & 7 are in the same group, are 5 & 6 in their own group as Oct 11, 2011 · On the LLY engine-- when a injector looses contact, it will go into "Limp" and and set codes. Seems irrelevant to temperature and the power level seems to fluctuate. Mechanic states that there was a short on the #7 injector, it melted the harness and the injector is shot. 6L LLY Duramax. 6 L | 2007. I replaced the Indirect injector (“9th injector”) part #12641278. 5-2005. 6 Diesel VIN Code "Y" Denso OEM Brand New Injectors GM Part # 12698552, 12678992, 12696966 Denso Part # DXD 51708, DXD 52206 Full Set (8) $1499. Knowing what triggers this code and how to fix it can save you from bigger headaches down the road. Balance rate on #5 is +1. Buzz test passed. At the end of the injection event the ECM closes the injector by discharging the injector piezo stack. 6 L | 6. nuqyuj ikbgg kbadhi slvzd kvcskhio hspvs ejskug iakevfnr zgpj muj