Duramax injector codes. Now I'm throwing codes p1224 throttle position sensor, and injector short circuit, p1233, p1239. After that trip in never through it again until a few days ago where after I replaced a vband clamp on the back of the Mar 25, 2021 · So I had to swap ecms chasing a fuel temp code. Solve common programming issues and ensure your Duramax runs perfectly. Dec 13, 2024 · I am purchasing a Glow Plug Control Module but they are asking for the IQA (injector quantity adjustment) numbers. In this overview guide, we'll explore the main features, compatible vehicle models, engine specifications, and parameters of LLY injectors. I replaced all 8 Injectors on my 2011 gmc and wanted to up date the codes Mar 12, 2024 · earn all about LBZ Duramax injectors in our comprehensive guide. Hooked it up to the scanner and got codes P0305 (cylinder 5 misfire), P1241 (Injector #7 output), P1129 and P1135. 6 Duramax with Allison Transmission. My truck was not drivable until the injector was replaced. 34 ms. Sep 14, 2020 · LLY Injector Knock, Codes P1223, P1226, P1235, P1241 Jump to Latest 8. I know they are written on the injectors, but I am wondering if I can get them somehow with a scan tool or something. This video from Standard details the Duramax Flow Rate (Injector Quantity Adjustment) Programming with an Autel Scan Tool. which is supposedly the injector harness on #7. Jan 14, 2023 · Just guessing but would start at #5 injector. Indeed, your 2019 DuraMax is equipped with electronic injectors that operate with the ECM. Although generic, the exact repair Jun 19, 2021 · Each injector has a unique 10 digit code representing the flow characteristic of that injector. 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. It does have the emission delete DPF whole exhuast system deleted. Reading up on this, ive discovered the terrible injector harnesses and went down that road, and found a thicker yellow wire with a hole worn through the insulation going to the FICM. On the calibration not sure… Sep 4, 2020 · 2011 LML Showing code for Injector Group B circuit failure, Injectors 2, 5, 6 and 7 are not functioning. The fuel injectors are responsible for delivering fuel into the combustion chamber at the precise moment and in the correct amount for optimal engine performance. Truck is no longer under warranty. Read the GM Duramax injector installation info guide created by NW Fuel. The early L5Ps are known to have problems with the injector harness (es) losing contact with the injectors. Are the numbers that I need to program the injector on top of the injector? 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 anyone else ever had this happen? Or know how to fix it? Jan 7, 2009 · By using the EFILive Flashscan V2 interface you can program the new ECM injector flow data to match the GPM and get this problem resolved. Jun 13, 2024 · Anyways, I replaced the injection pump, oil pump, crankshaft gear and timing gear. Jun 16, 2019 · Does anyone know where else the L5P would store it’s injector programming numbers? I checked the glow plug module and they are not there. Some Bosch common rail injectors have the trim code marked on the top of the plastic housing, or on the coil of the injector. So it's an LML My OBDII code reader gave me codes for no injector signal on bank B, C, D, and A. Refer to Fuel Injection Pump Replacement in SI. Also code fuel injector group Duramax Diagnostic Trouble Codes On-Board-Diagnostic (OBD) trouble codes are one way your vehicle communicates with a mechanic. Oct 12, 2011 · On the LLY engine-- when a injector looses contact, it will go into "Limp" and and set codes. The factory installed label indicates the IQA data for all the original injectors installed at the factory. A major part of this fuel injection system is the CP3 fuel injection pump. This time, connector issue with a caution from the dealer if it reoccurs they will replace the ECM. Didn't think about how the lly dvts are labelled wrong, so now thinking that it might be injector three that I am shutting off. It was failing the circuit test at startup. It's p2155 injector supply circuit group 4 is what's coming up. Oct 24, 2018 · my 2004 Duramax Gen2, LLY throwing multiple codes p2149 p1296 p0090 p0102 p0700 p1249 p0202 Truck has ove 300,000 miles If I just replace injector 2 will this clear all other codes? Jun 2, 2021 · How reliable is the Duramax L5P engine? Read common engine problems and reliability issues with the 6. is there a way to tell if it is the injector or just a wiring harness Injector trim code errors and programming difficulties often occur after injector replacements in this model. Compatible Vehicle Models: LLY Mar 13, 2015 · Hey guys I've got this code that I haven't seen to much about and I've never seen it myself. First Duramax to use an EGR (exhaust gas recirculation) system. of injectors. The codes are P0207 and P2146. Jul 7, 2025 · Struggling with L5P injector trim codes? Get a step-by-step guide from Alliant Power on how to program L5P injectors using GM GDS2 and aftermarket scan tools like Snap-on Solus Ultra. Jan 28, 2019 · Some trucks with injector codes for retarded or advanced DTC Codes have these issues, I have dealt with a few trucks with injector codes that ran fine with no knocking and some that knocked at low rpm with no DTC Injector Codes. 6L L5P turbo-diesel Duramax engine. It's Tech Tip Tuesday 💡Having trouble installing L5P trim codes on your Duramax? You're not alone! This process requires specific steps to ensure the Engin Solenoid Application Identifiers Duramax Common Rail Injector Identifiers 0986435504 – 2004. In particular, it looks for issues that may result in harmful and polluting emissions from exhaust gases. Location (physical) - Injector Trim Codes can be found on the injector solenoid above the connector. I'd clean or ice pick those connectors and check the harness for problems very carefully. It means that you have a fuel injector with a circuit malfunction, specifically the fourth cylinder in the firing order). 7 Cummins Reply Like Jul 28, 2013 · The ECM will adjust the fuel qty based on each injectors "flow rate". Those come back as fuel 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. Injector 3 and 8 were replaced along with the pigtail. . Nov 29, 2013 · LML injector flow rate numbers (IQA) are etched on top of injectors I know, and are of 10 digits Had some trouble (with new E86 ECM, and new GPCM) getting vehicle to start. Feb 10, 2025 · Improve diesel engine performance and efficiency with a better understanding of injector trim codes, where to find them, and how to use them. Am I just missing it. If it is a LLY engine, a quick "Ice Pick trick" can fix the problem. Upon inspection and testing is was discovered the vehicle has a new unrelated problem causing P0204, P0300, P0304 codes to set intermittently. Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis I did not Jan 25, 2022 · For a lot of injectors, this stamping is done on the solenoid. Apr 30, 2020 · Not a single code thrown or pending. FICM? Today we have a shop that was unable to program the injectors for this duramax with his scan tool so he brought it to our shop and we show you how to do this Nov 24, 2019 · New truck, 1600 miles on it and check engine light just came on. So many manual regenerations. Apr 2, 2021 · Dealer replaced number 4 injector and cleared codes. My initial reviews looked like it was an extensive database. Swapped five and six to see if it was the injector hanging with no change. Diagnostic Trouble Codes TROUBLESHOOTING MaNUaL For Free Technical Support Call: 866-bullydog (866-285-5936) P 0 1 0 1 1 2 3 4 5 Dec 1, 2022 · Has anyone successfully programmed injector trim codes on a L5P with an Hp tuners ecm? I have a friend's truck that was taken to a shop for a misfire and an injector was replaced and a snap on used to change the trim codes, but they all went to zeros and now will not allow it to be programmed. Mar 15, 2021 · Looking for input on a scanner/tuner to read the injector balance and to install the new injector codes. I disabled each injector individually and determined 1, 3, 4 & 8 are in working order. This truck is costing more then it is making. I can't seem to find any info on causes of these codes. Prior to installing the deadener, verify that the wire routing doesn't come into contact with said deadener. 6. 6 Duramax with Allison 2014 Dodge Dually 3500 SLT 6. 6L diesel engine, known for their reliability and performance. I only get the code if I am pushing the truck hard. Often times it is just a bad connector and not the injector itself (bad injectors can and do happen occasionally). Was the code P0207-? Here is some info I wrote and saved. NOTE: Before installing replacements injectors, write down the 10 digit Injection Quantity Adjustment (IQA) code. Apr 25, 2024 · Uncover the mystery behind the P0207 code on Cylinder 7 with expert diagnostic steps - a crucial guide for resolving injector circuit issues. I wrote down and confirmed in ecm and gpm the injector calibration #s in programming. com Does anybody know if there's an easy way to program injector calibrations into the ecm AND gpm? Right now, they're both empty. It will be on 4 cylinders -- runs-- although not very well, and noisy. However where in the menu system is it on a Tech 2. D. I have 250k miles but we do occasionally pull a 41ft toy hauler. No sooner than 15 minutes of driving off the lot, my check engine light came on. Walter E. Unable to just get out from under it. Kurtz Sep 15, 2020 Col. I have tried Apr 1, 2014 · I was stuck along the road yesterday after my truck went into limp mode & check engine light come on. May 28, 2021 · Recently got a code that indicates worn injectors. is the seventh and injector on the or passenger side. Oct 2, 2019 · Hi all, I replaced all of my injectors over the weekend. Special Functions. 100 miles later same occurrence, limp mode and a multitude of warning lights. Anyways over Fuel Injector Group A Circuit/Open What does that mean? This is a generic powertrain diagnostic trouble code (DTC) and typically applies to OBD-II vehicles. Tags: Duramax L5P injector connectorDuramax injector connector pin te Jan 8, 2018 · G'day all, I have a new tune loaded that is commonly used here in East Australia and works well with our custom conversions. May 16, 2024 · Now I have codes: P0207, P0300, P11FF, P2A00, and still P157A. 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. Jun 24, 2020 · I spoke with a couple guys there who have been there for 30+ years and apparently the 2017 and early 2018's had shitty injectors----they are now on the 3rd and final revision of the the original injectors---so the issue is supposed to be resolved (must have computer updated after injectors are replace). I say "intermittently" as on occasion I get readings of all 8 injector output circuit problems. Jan 17, 2022 · Just bought my 2018 L5P with an active CEL P20CB code - aftertreatment fuel injector control circuit open. Following an accident, I have to replace an ECM on this 2019 Silverado truck with a Duramax (L5P) engine. May 16, 2021 · I recently purchased a bosch injector for my 05 chevy express 6. 2011 Duramax LML injector code rewrite Hey guys, I was wondering if someone could point me on how I write the new injector codes into the glow plug module and the ecm. 5. So, that's 2 injectors per bank and that's all 8. The balance rates are with in +/-1. I replaced the accelerator pedal assembly, and same codes. 6, ensure you input the exact injector trim codes printed on each injector. 3 Dec 29, 2021 · Was going to go ahead and update in injector flow rates. 2009 Chevy Silverado 2500HD LTZ 6. 33 to 0. Is the base file correct for the truck 100%. I replaced the Indirect injector (“9th injector”) part #12641278. Feb 28, 2019 · I had a 2010 Chevrolet 2500 duramax dropped off due to a no start, no DTC codes, I have cam and crank signal, even replaced crankshaft sensor since I keep on handy, also have good oil pressure. Happened at a 1000 miles. Jun 8, 2018 · Valve covers are redesigned to make it easier to replace injectors. Sometimes it will start and sound fine then all of a sudden sounds like an old tractor and dies. Does anyone know for sure if the number is also located anywhere on the injector body itself? I do know that they cross out the numbers on the top they originally have when Oct 16, 2020 · The number 4 injector on the L5P is one I keep seeing failures reported for. Prior to installing the electrical connectors to the injectors, apply di-electric grease to each connector. I also have a dead miss at idle that goes away with a little throttle. 2019 GMC 2500HD SLE 6. Three regions in the last 2000 miles. Dec 12, 2023 · 2016 Chevy Silverado 2500HD 6. Mar 3, 2012 · Installed a 4" turbo back exhaust and an ECM tuned with EFI fuel tune and DSP2 switch with Turbo break. Mechanic states that there was a short on the #7 injector, it melted the harness and the injector is shot. There were some wires that had rubbed through by the Nov 20, 2011 · It is best to list the codes. It all If the current SI diagnostic has led to Fuel Injection Pump replacement, replace the fuel injection pump. Replacement of fuel injectors without a complete cleaning of the fuel system will only be a temporary fix until the debris gets into the new injectors. Better late than never I guess. Went threw all the menus and could not find it. Aug 10, 2018 · Common rail injectors of all brands require coding of the unique calibration code (found on the injector) to the engine ECU. 3 2016 Chevy Tahoe 5. Aug 22, 2022 · FYI, according to Rockauto, here are the numbers for the fuel injector lines and which injector they go to, at least on the early 2. Every diesel vehicle built since 1996 has an OBD II computer system that monitors and identifies issues. I pull over and check the IQ screen for codes and get PO202 PO203 PO205 PO208 FICM DETECTS AN INCORRECT CURRENT ON A FUEL INJECTOR CIRCUIT P1262 ECM Hello, Have this duramax here can't seem to clear out the injector codes. Use a compatible scan tool to access the engine control module (ECM) and enter these codes precisely. If it happens again, definitely have a look at the connector. P0207 means that the PCM detected a fault in the injector or the wiring to the injector. Are the numbers that I need to program the injector on top of the injector? 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. Piezo High Pressure Common Rail Basic Information The high pressure pump builds rail pressure and delivers it to the fuel rail manifold where it flows through the injector lines to the injectors. Also Jun 9, 2017 · I have a 2013 LML, I replaced the long block about 200 miles ago. These codes indicate a short or fault in injector number 2 and number 5. Balance rates are crazy good. Dec 29, 2015 · Balance rates all show zero, no injector codes. Mar 9, 2020 · Did you have a code? My injector went in the number 4 cylinder and I got code P01D1. It was easy on the LBZ truck but its just not there on my 2005 LLY. These terms can be complicated so lets break it down for the crayon eaters. Be certain to note the code and the cylinder you installed the injector in, and enter them into the ECM. DTC codes P268C, P268D, P268E, P268F, P2690, P2691, P2692, P2693 are the codes that are set when the injector calibration is incorrect. It’s generic code, which means that it means the same thing for the Chevy Silverado as it would for any other vehicle. Mar 29, 2007 · Drive 15 miles check/clear codes. Took the truck down to the local mechanic to read the codes. About a -4. The P2155 fault code in automobiles indicates a problem with Fuel Injector 4, which can cause the Engine Light to turn on. Fixed that, and now the truck runs and revs, it is drivable, but its in the "Tractor mode", injectors are loud as hell. This was at a mileage of 2317 miles. That problem is sometimes caused by a loose connector at the injector. Code P0207 Description The diagnostic trouble code P0207 indicates an issue with the injector circuit in cylinder 7 of the vehicle's engine. If the wiring appears to be in good condition, check the voltage on the wiring. The fuel pressure regulator in the high pressure pump and the pressure regulating valve in the rail control rail pressure. Troubleshooting P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208 on a Duramax L5P. 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". Code P0204 Description When your vehicle’s onboard diagnostics (OBD) system throws a P0204 code, it indicates a malfunction in the injector circuit specifically responsible for cylinder 4 of the engine. Start by examining the wiring associated with injector number four. 6L Duramax – Engine code: LLY 0986435521 – 2006 6. When I try to read, they both say "no data" I had "injector calibration incorrect" codes, and was following instructions on another forum. Mar 5, 2018 · This code has a short diagnostic, check compression on effected cylinder, if compression is ok, replace the injector. I find new injectors run at 0. codes are supply circuit short or open on group 1 2 and 4 Circuit/System Description The control functions for the fuel injection system are integrated in the engine control module (ECM). After replacing injectors on the 2018 2500 L5P 6. We see quite a few of these in our shop and here is the best way we have found to diagnose the issue. Although generic, the exact repair Dec 11, 2023 · Hey guys, After some advice on my lb7 I am in the process of rebuilding it and have got a new set of bosch injectors, but im not sure of which numbers i need to code them once they are in, ive seen on a few videos on other motors they come with a number on a tag but mi e have not. P0201 Injector Circuit Open Cylinder #1 P0204 Injector Circuit Open Cylinder #4 P0206 Injector Circuit Open Cylinder #6 P0207 Injector Circuit Open Cylinder #7 P2146 Fuel Injector Group A Supply Volt Local dealer in Hickory,NC SUUUUCK. Now it threw Nov 30, 2019 · Scanned codes are P0201-P0208, P2149, P2146 and P1293, So 11 codes total. Now I am getting po2cd cyl 1 injector exceeded learning limit. Several months ago while towing a trailer it though an injector short circuit code several time while towing on an hour long trip. can anybody help me with this Feb 16, 2012 · Can anyone help me. When the PCM sees that the voltage from cylinder 4 is outside the normal operating range, this code is thrown. P0204 is Jul 30, 2015 · I have a 2007. Learn more about these codes in our blog. Jan 25, 2009 · #PIP3394E: Duramax Diesel Injector Driver Codes - keywords ECM FICM P0300 P1223 P1226 P1229 P1232 P1235 P1238 P1241 P1244 chafe circuit chuggle connector miss misfire surge wire - (Feb 1, 2008) Subject:Duramax Diesel Injector Driver Codes Models:2004-2005 Chevrolet Kodiak, Silverado Mar 20, 2020 · Use this guide when programming your injector trim rates for a mechanical balanced set of injectors. Programmed the injectors to the PCM and did a injector reset learned values as well. Throws injector codes 1-8 and bank 1 and 2 voltage codes. The possible causes of this issue include a faulty Fuel Injector 4, an open or shorted Fuel Injector 4 harness, a poor electrical connection in the Fuel Injector 4 circuit, or a faulty Engine Control Module (ECM). The importance of repairing this issue lies in the fact Aug 2, 2022 · I do not ever travel over that way. Can the rig still pull or is it not advisable. All injector flows are at a default number. #5 had diesel inside the Injector connector itself. Now after all this time, I have spent about $4,000. 6 diesel. Now I think I just ended up completely wiping the data. 2005 GMC 2500hd 6. reflector wheel is good and tight, I guess the next thing would be the ECM? Have all the fuel pressure Oct 31, 2017 · When an injector looses contact [or a weak coil in your case] The system will shut down all injectors in that group, and set a P2149 for this group, or a P2146 for the other group. I'm hoping that all of these are relative to each other because of one or two issues, but maybe someone can steer me in the right direction. Might try checking all the wiring and grounds that you would've touched when doing the injector replacement first. DURAMAX DIESEL INJECTOR IDENTIFICATION GUIDE: LLY, LBZ, LMM ENGINES If you’ve ever been under the hood of a Duramax powered truck or van, you’ll know that the injectors from 2004 – 2010 look similar on the outside, but are different on the inside – built and calibrated for each specific model. I've had the truck for about 16k miles and when I bought it the fuel filter was 2 years old which was a little disappointing. It Mar 24, 2019 · After reassembly, I cleared all the codes and disconnected one injector connector on the good bank to see if it would code all injectors on that bank or just the disconnected one. However I now have all the p268 codes coming up for each injector, no worries hook up EFI live tool and copy data from GPM as per instructions posted on Web etc. The following information applies to Duramax, Powerstroke, and Cummins engines only. LBZ/LMM+ require you to update the injector trim codes a Debris that is allowed past the filter and into the fuel system can cause fuel injection issues that may set DTCs P2A00, P026D, P0300, P0172. Dec 25, 2024 · Repair typically involves replacing the faulty fuel injector, and costs, including parts and labour, range from $150 to $300. Know Your Parts is a website and to May 16, 2016 · If I swap injector 1 with injector 3 or 5 and see if I still throw a cyl 1 injector code? Would that determine if my injector is bad or not? Sep 6, 2010 · The FICM is seeing a problem with the fuel injection circuit for cylinders 1, 4, 6, or 7, so you get DTCs P0201, P0204, P0206, P0207 and DTC P2146. Moved to LB7 Sep 3, 2020 · On one of my initial services by Chevy for this code, they checked my injector balances and said they were OK, but maybe that is not enough of a check? I read somewhere they need to check the returns also? After they did the fuel filter replace/housing clean/line flush (18-NA-361) the P026D went away. If you need help identifying your engine, please email us at sales@injectorsdirect. The fuel injector flow rate programming must be done when any of the following procedures are performed: May 16, 2021 · I recently purchased a bosch injector for my 05 chevy express 6. Since I can't communicate with the ECM, I'm wondering how I'll be able to code the injectors without having to take them apart. Thanks Feb 2, 2016 · Buddies truck starts normal idles normal for 10 seconds then rattles and shuts down. Below we have set out some examples of Denso, Bosch, Delphi and Siemens common rail injectors and where you can find the calibration codes for each brand. It appears to offer DTC codes by manufacturer with further documentation for Troubleshooting. How to quickly diagnose, repair, and info on symptoms and causes of a P02D3 code which means the fuel injector offset learning is at its maximum limit on cylinder number 4. L5P Duramax injector connectors have had a high Mar 13, 2024 · Overview Guide to LLY Injectors LLY injectors are a crucial component of the Duramax 6. 6L Duramax – Engine Code: LLY/LBZ 0986435520 – 2007-2010 6. 9K views 9 replies 3 participants last post by Col. I just bought a used 2019 Silverado with the L5P motor. Nov 22, 2010 · It feels like half the engine shuts down. Feb 13, 2011 · After putting the Banks up on SL mode, I hit it and the truck bobbles repeatedly and check engine light comes on and runs on like 2 cylinders. And I know I have to register the I. All of these codes refer back to the Hydrocarbon Injector. I can't find the tag that was on the injector. Using DVTs I shut of each injector, on number six the truck gets quiet immediately at idle but will start knocking again over 1000rpm. I iced picked all of the injectors and then #5 popped up. Could be a lot of things I guess. I took Fuel Injector Group C Circuit/Open What does that mean? This is a generic powertrain diagnostic trouble code (DTC) and typically applies to OBD-II vehicles. Can't seem to relearn the injectors. 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. It's probably what's making it shake and run so bad and that's probably triggering other codes and problems. Have you come across a situation where the injector will not plug into the wiring harness? We Nov 20, 2017 · Diagnostic challenges with a GM Duramax: Limp mode, fuel injectors, and the complexities of modern automotive technology. From signs of bad injectors to the benefits of aftermarket and remanufactured options, we cover it all. 5 where spec is Jan 22, 2025 · Duramax Engine LLY 2004. Aug 13, 2020 · Injector Quantity Adjustment codes are located in different locations on the injectors. Then I clear the codes with my Edge Insightand it will start up and run fine until it throws the engine light and starts running like sh!t again after a few miles. I ran the codes and it popped 3 codes: P01CD, P01D2, P01D4. The trim codes allow the ECM to correctly balance injector performance by adjusting the signal to each injector. That may include but is not limited to vehicles from Dodge Ram (Cummins), GMC Chevrolet (Duramax), VW, Audi, Ford (Powerstroke), Mercedes Sprinter, Peugeot, Alfa Romeo, Nissan, Saab, Mitsubishi, etc. 6L LB7 Duramax uses a high pressure common rail fuel system with direct injection. Getting faults for all 8 injectors. Apr 27, 2017 · Hi Everyone long time lurker first time poster, I got a 2013 lml that started throwing a P02D7 - Cylinder 6 Fuel Injector Offset Learning At Max Limit Checked the balance rates against 2 different computers and they both came back with Injector 6 being out of spec. Single LLY injector available here Complete set of LLY injectors (with seals and glow plugs) available here LLY turbo available here LLY diesel injection pump available here This LML Duramax is setting multiple injector timing and learned limit codes. Can only find one post online that registers this code and they felt the issue was an injector but no follow up by the OP was ever Feb 22, 2021 · The MaxiCOM performs simple tasks such as reading and clearing fault codes, resetting service intervals, coding injectors and keys, performing relearning procedures for transmission, throttle, and steering angle sensors, coding new batteries, and performing DPF regens. The IQA code is located on each injector head and is also printed on a factory label located on the engine. 5 to 2005 In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring. I have an injector out of calibration range code for all 8 Fuel Injector Group D Circuit/Open What does that mean? This is a generic powertrain diagnostic trouble code (DTC) and typically applies to OBD-II vehicles. Everything installed fine, but now I have a check engine light on. Although generic, the exact repair Jan 13, 2020 · 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. On restart, I got the "cleaning exhaust filter keep driving” message. is it in the front of the back of a motor . I swapped injector 2 with number 4 and injector 5 with number 3 to see if the fault would follow the injector, but it still shows codes for 2 and 5. Nov 5, 2020 · The 6. 0mm³ and the pulse width at idle ranges from 0. and the year of the truck. Once the fuel injection pump is removed, remove the Fuel Pressure Regulator 1 and inspect for debris that can be picked up with a magnet. 35ms. 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. #7 is setting the code for incorrect injector flow rate number. 5-2005 6. Jun 4, 2021 · GM released a service update to address an issue with the fuel injector diagnostics in certain 2021 model-year Chevy Silverado HD and GMC Sierra HD trucks. 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 Apr 18, 2007 · I almost always use Primrose (emulsifier), including "Injector Perfector" occassionally, and have had used the Nicktane auxiliary (CAT) filter system since DAY ONE. 6L Duramax engine. 6 Duramax Gassers 2019 Chevy Silverado LT 5. The code I had that started this thread was P02D5 referencing cylinder 5. The injectors have a piezo stack instead of an electro-magnetic solenoid Oct 24, 2022 · My 2020 Silverado 3500 Duramax diesel pickup has 27,000 miles. The cheap fix that will last, is to remove the connector, place it against something flat, and push a SHARP ice pick into both terminals - P0304 Code: Cylinder 4 Misfire Detected Begin by inspecting the wiring harness connected to the injector. I am curious how long I have before the injectors fail. 8's (2016+) 12642022, line for inj 3 12642024, line for inj 2 12642025, line for inj 4 12642026, line for inj 1 This thread should be stickied or pinned. The IQA code is printed on a tag that is attached to the injector (1). In addition, Jun 1, 2021 · So is this a MUST when changing injectors on the LLY??? And can you insert the injector codes without the 'key' to the ECM tunes?? I have ATP tunes on my LLY but did not get the autocal or the digital tune file before Rob closed. I think you’re replacing an injector. I'm at a loss I don't see it being an injector and there's no Actual Idle Speed - Target Idle Speed <= 200rpm Actual Idle Speed - Target Idle Speed > 200rpm None of these fault codes set: Fuel Injector Group B Circuit/Open What does that mean? This is a generic powertrain diagnostic trouble code (DTC) and typically applies to OBD-II vehicles. 4599048 Note: Examine the underside of the deadener (1) for evidence of wire contact. The location all depends on the manufacturer and the 17. Failure to enter the IQA code into the ECM may result in engine operation complaints. When this circuit malfunctions in cylinder 7, it can lead to a variety of performance issues Oct 4, 2017 · Working on a 2003 LB7 Duramax that runs extremely "intermittently" rough, misfiring and farting up a storm. Please help with your thoughts. This injector is also known as the “9th injector”. In other cases, like with Delphi injectors, you’ll find a parts sticker on the body of the injectors. Mar 11, 2023 · A while back when this initially started, it was just the Injector 2 and 8 code. If there is no tag present, please use the correction code printed on the injector, which can be located on the injector body (2 All of these codes refer back to the Hydrocarbon Injector. Now that I have it finished, I have injector advanced codes for 2,5,6, and 7 injectors. Since I drive easy most of the time the code has not returned. And could those injector calibrations codes even have been what was OBD-II Trouble Code Technical Description Cylinder 7 Injector Circuit Malfunction What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. The codes have been cleared and injector correction reset by another shop but the codes returned after 800 km or so. Kurtz Discussion starter Jun 23, 2022 · Hi, To start off my 2014 Silverado 3500 HD crew cab 4X4 dually pickup broke down in 2019. Some rebuilt injectors will have IQA codes on the box or the bag it is packaged in. Not sure at what rpm it stops doing this at, maybe its just idle. Turbo injectors, # 9 injector replaced. Although generic, the exact repair NW Fuel carries fuel injectors specifically for your GM Duramax vehicle. When I asked about this issue he stated the injector was a crappy design, and they see this often. Feb 9, 2018 · That 1261 code is usually associated with a bad FICM. 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. 00 and Jun 2, 2011 · This time the it is a P02CD trouble code which is "Cylinder 1 Fuel Injector Offset Learning at Max Limit". May 31, 2013 · Hall a 12 posts · Joined 2013 #7 · Jun 20, 2013 My 03 is showing all these codes after injector replacement and a few more does the lb7 harness give the same problems LB7 8 inch fabtech 37 toyos 5 inch exhaust AD II 165 Bills custom intake with custom intake horn and intake heater delete with EFI Live by BoBo Reply Like M Mar 18, 2020 · P0204 is an OBD II trouble code. Apr 21, 2016 · It also gives an explanation next the the code number. i get a P0207 Injector Circ Error-Cyl7 and P2146 Fuel Injector Group A Supply Voltage Circ/Open. Maybe a bad connection, maybe a bad injector. Also drove the 40 to 70 deceleration 20 times. 4. Enter the DTech thirteen digit IQA code for each injector/cylinder into the ECM following the procedure below. QUESTION: If the truck is not throwing any codes, does this mean that I don't have any injector problems? Jan 30, 2011 · i have a 2004 duramax. Im also not sure on how the duramax uses the trim codes, but on a Cummins the trim code that is printed on the outside of the injector solenoid has to be Customer: I have a 2008 Duramax with codes 1227 and 1236. Jun 6, 2014 · P1223 Injector 1 Output Circuit P1226 Injector 2 Output Circuit P1229 Injector 3 Output Circuit P1232 Injector 4 Output Circuit P1235 Injector 5 Output Circuit P1238 Injector 6 Output Circuit P1241 Injector 7 Output Circuit P1244 Injector 8 Output Circuit EGR codes are because of the blocker plate. Use the GM Tech 2 to program the individual injector codes in the ECM and the GPCM. Made me take exhaust and cold air off before service last time. What are Injector Balance Rates and IQA Codes? Injector balance rates and IQA codes are two different things but they are also connected. View attachment 31905 View attachment 31906 View attachment 31907 . OnStar states the code is P01D1, seems to deal with the ECU and engine/transmission timing learning. wtf: May 3, 2022 · Most called code p20EE and p2022. If it’s only those two codes it sounds like not all the injector data was loaded I’ll have to double check alldata when I get home for the codes but I think each one goes to aspecific injector. I also replaced injector number 7 due to me thinking it was the source of the knock. Will it got back into limp mode with a load. I've cleaned Dec 3, 2020 · Hey guys, I've been floating around some diesel pages for a while. Although generic, the specific repair steps may vary depending on make/model. 5 GMC with 59k miles on it. It threw a code about 800 miles ago and a dealer replaced the injector in #6. I started checking the engine harness, and the ohms read fine. I have a code that is injector circuit/open on cylinders 1-8. For Injector removal and installation, refer to Service Manual for procedures. Have done everything in my power to avoid injector problems. Injector Trim Codes Trim Code - A unique 13 digit alphanumeric code assigned to each injector based on injector flow data at production. Under the diagnostic aids section it talks about possible fuel contamination and they issued, but they all would cause issues across the whole engine, not only one cylinder. He said that the short also shorted the ECM and I have misfires on every cylinder, except #4 (go figure). Trust SINOCMP for high-quality LBZ injectors for your 6. 6L Duramax – Engine Code: LMM On Duramax, injectors the electrical connector is the best identifier. 3 new exhaust systems, No x censors replaced twice and every censor possible replaced. Balance rates are adjustments made by the vehicle engine computer to "balance" injector output. When this system identifies an issue it turns on the Jan 23, 2010 · (TDFDiesel) Edit: Here is a free resource shared by a member. hmnjece cwlw cwrlz rnrcz hmh qdvy mrwfe rwqul uxan tumxts