2002 chevy 2500HD 6.6 LB7 code P0380 Ok so here is the deal I have a 2002 chevy duramax 6.6 LB7 California emissions engine and I am getting a P0380 code, glow plug malfunction circuit A. so I tested power and ground at the module and its good. I tested all glow plugs and they are under 1 ohm of resistance and are good. I also checked ... 02' Chevrolet Duramax Diesel DTC's!!! P0234 P0380 I ...2017 Duramax engine light code P1339. Jump to Latest Follow 17K views 3 replies 4 participants last post by Ron Nielson Aug 14, 2023. Ken the trailer guy Discussion starter 1 post · Joined 2020 Add to quote; Only show this user #1 · Jul 30, 2020. Hi everyone. I hope this is the right place to ask this question but my check engine light stays ...Sep 20, 2005 · Duramaxdad Discussion starter. 247 posts · Joined 2003. #1 · Sep 20, 2005. I recently got the check engine light, and went to Auto Zone to get the code. The code came back as U1800. I did a search here in the forums, and found out that it means Loss Of Communications with Fuel Injector Control Module (FICM). What exactly does this mean?Labor: 1.0. To diagnose the U1800 GMC 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.Mar 28, 2024 · Ron, you seem to be the guru on every forum I go to looking for this p0193 code. I have a 06 lbz duramax. Loaded a tune onto truck, truck ran fine. Pinned the 5 pos switch into ecu. Truck got a p0193 code. I replaced the fp sensor, fpr, fuel filters, new batteries (truck was due for them) I shot wiring on the fuel pressure sensor.8902 posts · Joined 2011. #11 · Jan 14, 2020. P205B detects an 'out of range' difference in fuel and DEF temps, after the truck has been off for a certain period. Guess they need to look at the fuel temp sensor....since so far it sounds like they have just messed with the DEF temp detection. The code chart says P205B just compares the two ...Dirtymax001. 8 posts · Joined 2012. #6 · Mar 7, 2013. Go to an auto parts store like O Reilly's and they print u off a list of the possible causes and fixes to the code. Sometimes a malfunction in the way your chip is hooked up, it will cause it to throw a false code. tHe bLaCk pAnThAr. 2001 Lb7 Duramax. -Dual Exhaust.I'm getting a code P2149 fuel injector group B supply voltage circuit/open. ... 2005 dodge ram 1500 won't move when in gear 38 answers. Question on codes p0202 and p2149 - Chevy and GMC Duramax Diesel Forum www.duramaxforum.com > ... > 04.5-05 LLY Duramax Powertrain Dec 5, 2009 - 6 posts - 4 authorsMay 20, 2010 · Yes. The ECM lost communications with the BCM. There is a serial data network between the two Modules. A bad connection could cause loss of communications (i.e. dtc U1031). Maybe it was only momentary and has reconnected. You may want to clean the connectors to the BCM or ECM. '18 Ext Cab Z-71. '16 Reserve 26'.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. Search for U1500 Questions and Answers.I have a P0181 code "fuel temp sensor" any idea what the could be from? The truck isn't running rough right now just the service engine soon light on. 2002 GMC Sierra 2500HD 4x4 crew cab. 6.6 duramax with 205,000 miles. Bullydog Monitor. K&N cold air intake. 5 switch EFI live. Bosch Injectors.Step 1: Retrieving Freeze Frame Data. You need to possess a compatible OBD-II standard Scanner for this purpose. All Duramax engines produced after 2000 are compatible with the OBD coding for the diagnostic. Connect your scanner to the diagnostic port located under the dashboard.Vehicle: 2010 GMC Savana 3500 Cutaway Duramax 6.6L Turbo Diesel Current codes: p0090 Old codes: p0088, p0087Limp mode. Replaced both fuel filters, replaced FPR, replaced FPRV, replaced fuel rail press … read more2005 chevy silerado 2500hd . 6.6L duramax.. code p1094. Truck started then stalled. Will not restart. Dash showimg fuel filter change needed. Code is telling me low fuel rail pressure. ... TROWING CODE U1800. TRIED RE PRIMING AND STARTING WITH NO LUCK cHECKED A ...If you look up LDS on the Duramax Forums you will see scores of horror stories. They have switched ownership in recent years which I have heard has greatly improved the company. ... Truck is now throwing a u1800 code. However the CEL never comes on with any of these codes. Kind of excited because this code helps me further pinpoint the issue.P0090 u1800. I have an 02 lb7. Went to replace ignition switch and it created a short somewhere. Engine cranks like its going to start but cuts off as if there is no fuel. I hear what I believe a sound indicating continuous power going to the fuel pressure regulator or fuel pump. If I pull the ignition relay in the main fusebox it stops.2003 GMC duramax 3500 has codes p0370 u1800 p0489 p0404 p0089 p0101 wont start. GMC Cars & Trucks; Open Questions: 0 answers. I have a 97 Aurora Why does this check charge system message pops up on my info screen My serpentine belt pop the message came up fix the belt and message still come up on the info center.Im getting u1800 u2104 u2106 codes on my 02 chevy duramax its shifts at high rpms. Answered in 21 hours by: Chevy Mechanic: Jerry Newton. This code indicates a communication issue between the ECM, TCM, and FICM. If you have oil in the TCM connector at the transmission, that needs to be corrected, there should be no oil inside this connector.Sep 14, 2021 · I am having issues with a u1800 and p0090 code on my 2001 duramax with the lb7. I have ground but am not getting power - Answered by a verified Chevy MechanicCode: U1800. Modules: Description: Lost Communications With Fuel Injector Control Module (FICM) Is that the DTC you getting? Check Fuses first, then relay. <---- My udder truck :cool2: Does an 18 spd qualify ya for the brotherhood of handshakers? 2004 GMC Dmax LB7/Ally 5 spd C/C, Sierra 2500HD, 4x4. 2nd owner at 88,000....Purchased 07/07 ...Jan 27, 2021 · U1024 code and electrical issues. anyone have any insight on this. I am having what seems like a electrical problem. i start my truck up and I am getting various lights that turn on and off on my dash, ABS light, parking brake, security, battery. my gauges also go from reading normal down to zero then back to reading normal and so on. the truck ...LB7 Code U1800 FCIM wire chafe. I had an issue blowing the 25A FCIM fuse. Manhandling the harness would usually cause the fault to disappear. I've seen threads on wire chafes at the ALT bracket and under the fuse center, as well as contamination in the bail connectors. It took some digging, but mine was in a different spot.Id really appreciate it.! Steven. 2002 Chevy 2500HD LB7 Duramax <Has 101k, PPE HOT+2 on 225 tune, Edge CTS, Industrial Injection 42% cp3, AIRDOG 165, Banks Ram Air, Banks Wastegate Actuator, MBRP Single 5" Offroad Exhaust with 6" Tip, 7" CST Lift, PPE Deep Sump Pan, PPE Diff Cover, 06' Mirrors & Taillights, Pioneer Deck & Sound, Rancho Shox ...Torque Converter Chatter. Bad solenoid. Debris blockage in the valve body. Improper C3 lubrication. Electrical issues / bad. Again, this is a great place to start diagnosing your P0700 codes for 2001-2004.5 (LB7 & LLY) Allison-equipped HD trucks. However, final diagnostics should always be done in person by a professional.Chevy / GMC Duramax 06-07 LBZ & LLY Forums. 06-07 LBZ & LLY Duramax Powertrain U1301. Jump to Latest Follow ... Started it a couple more time and it did the same thing every time. checked the codes with my bully dog and it is showing U1301. also noticed that the power windows and the radio weren't working. going to go look at it later today but ...When the ECM sends an ON signal the coil pulls the plunger downward and feeds the vacuum signal to the power valve actuator. The Diagnostic Trouble Code (DTC) will be set when an excessively low or high voltage signal is sent to ECM through the valve. P1800 Code - Variable Intake Air System Control Solenoid Valve Circuit.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.Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain. 02 lb7 stock won't start. Jump to Latest Follow 1 - 4 of 4 Posts. W. Wastedmoney · Registered. Joined Mar 19, 2015 · 5 Posts ...While on a 600 mile trip last weekend 2 times while driving the bat popped up on the message board and gauges went dead for a brief second. Truck remained running and didn't throw a code. Then on my way home the cel light came on and I looked through my cts2 and it has a bunch of communication codes, p0700, u1000, u1800, u2104,u2106, u2105.4,880 satisfied customers. 2001 Chevy 2500HD 6.6 Duramax 4x4 Lots of codes. P0087 P0093. 2001 Chevy 2500HD 6.6 Duramax 4x4 Lots of codes. P0087 P0093 P0102 P0107 P0540 U1000 U1800.Cadillac CTS: Some Cadillac CTS models have experienced U1041 codes due to problems with the electronic brake control module (EBCM). GMC Sierra: Similar to the CTS, the GMC Sierra has also had instances of codes related to the ABS module or wiring issues. Hummer H2: The Hummer H2 has been known to experience this code …Dirtymax001. 8 posts · Joined 2012. #6 · Mar 7, 2013. Go to an auto parts store like O Reilly's and they print u off a list of the possible causes and fixes to the code. Sometimes a malfunction in the way your chip is hooked up, it will cause it to throw a false code. tHe bLaCk pAnThAr. 2001 Lb7 Duramax. -Dual Exhaust.Dirtymax001. 8 posts · Joined 2012. #6 · Mar 7, 2013. Go to an auto parts store like O Reilly's and they print u off a list of the possible causes and fixes to the code. Sometimes a malfunction in the way your chip is hooked up, it will cause it to throw a false code. tHe bLaCk pAnThAr. 2001 Lb7 Duramax. -Dual Exhaust.Duramaxdad Discussion starter. 247 posts · Joined 2003. #1 · Sep 20, 2005. I recently got the check engine light, and went to Auto Zone to get the code. The code came back as U1800. I did a search here in the forums, and found out that it means Loss Of Communications with Fuel Injector Control Module (FICM). What exactly does this mean?S. saskboy. 325 posts · Joined 2009. #3 · Feb 23, 2010. DTC P0113. Circuit Description. The intake air temperature (IAT) sensor is a variable resistor, sometimes called a thermistor. The IAT sensor measures the temperature of the air entering the engine. The engine control module (ECM) supplies 5 volts to the IAT signal circuit.Vehicle: 2003 GMC ECSB 4x4, LB7/Allison, 241,000Miles, Only mods PPE Economy Tuner, MBRP 4" Turbo Back. Problem: Won't Start! Throwing P0090, U1800 codes and a bunch of others. Backstory: Drove down approximately 7 Miles of extremely washboarded dirt road to get to my mother in laws house. Truck was running fine as usual.Torque Converter Chatter. Bad solenoid. Debris blockage in the valve body. Improper C3 lubrication. Electrical issues / bad. Again, this is a great place to start diagnosing your P0700 codes for 2001-2004.5 (LB7 & LLY) Allison-equipped HD trucks. However, final diagnostics should always be done in person by a professional.When it comes to code editors, developers have a plethora of options to choose from. Among the popular choices is VS Code, a lightweight and powerful code editor developed by Micro...Take out the sensor and check for physical damages, cloggings, and debris inside the sensor chip. Step 4: Cleaning the Mass Air Flow Sensor. Remove the sensor from the connecting port and clean it using an authorized Mass Air Flow sensor cleaner. Spray on the sensor chip and wipe using a soft piece of clothes.Several DTCs set in the Engine Control Module (ECM) may be caused by an exhaust leak on some 2020-2022 Silverado 1500, Sierra 1500; 2021-2023 Tahoe, Suburban, Yukon and Escalade models equipped with the 3.0L Duramax diesel engine (RPO LM2). (Fig.So, I keep getting this code intermittently "P2383" I only have one vehicle and all the dealerships seem to be booked up for a month or don't have a diesel technician. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 209.3K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. ...I am getting a U1800 code (Lost comm w/ fuel injector module) P0090 P0193 P0380 P06022 I read of this forum ... 2003 Silverado 3500 Duramax 6.6l with code o87,fuel pressure in rail tool low.What could be my problems?Filter,fuel pump,fuel pressure sensor ,injector module? ...S. saskboy. 325 posts · Joined 2009. #3 · Feb 23, 2010. DTC P0113. Circuit Description. The intake air temperature (IAT) sensor is a variable resistor, sometimes called a thermistor. The IAT sensor measures the temperature of the air entering the engine. The engine control module (ECM) supplies 5 volts to the IAT signal circuit.I have 04 duramax with 6.6 LLY engine. will not start. no codes. act - Answered by a verified Chevy Mechanic. ... I am getting a U1800 code (Lost comm w/ fuel injector module) P0090 P0193 P0380 P06022 I read of this forum ...Just double checked for codes and found a U1800 from when it died on the freeway. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 209.6K 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!My 2015 has 57,000 miles on it and got this code yesterday, and its not running right now, I cant find any information on this code anyone help me out some. 2015 Chevy 3500HD LTZ CCLB 4x4. Old Trucks: 2010 Chevy 3500HD 567,000 When Traded. 2008 Chevy D-max 2500HD 305,000 miles when traded. 2005 Chevy 2500HD D-Max 419,000 miles when traded.321 posts · Joined 2011. #3 · Nov 3, 2011. There is nothing that says FICM, only like ENG2 and ENG1 and stuff. any body else know what it might be? 2003 2500HD LT, CCSB, LB7, EFI tuned by IdahoRob and installed by GOS Performance, Edge CS Insight, AFE intake, 5" center dump exhaust, 8" MBRP tip, 6" Pro-Comp lift, Fox dual resevoirs shock ...Get the most recent info and news about Let's Start Coding on HackerNoon, where 10k+ technologists publish stories for 4M+ monthly readers. Get the most recent info and news about ...The U1800 code is set when no comm between ECU and FICM. I have replaced 2 FICMs so far, and repaired dozens with the wires chafed at the alt bracket. I would check the wiring over again just to be sure, not just at the alt area. ... Just bought 04 Chevy Duramax 2500HD 6.6 LB7 120,000 Miles. Stalled while driving. Replaced fuel …Jul 14, 2017 · Jul 14, 2017. #1. Codes will not clear/erase. Has the computer or FICM failed? Background: code PO 0090 had tripped and Truck would not start until code was cleared. Code PO 0090 would not clear after multiple attempts to clear and U1800 appeared on scanner. I replaced cp3. Code will not clear. A.Checked for codes none present. Data list shows 3500-3800 rail pressure while cranking over. ... Anyone have test procedure for U1800 code? duramax on fire Member. Apr 15, 2015 419 2 18 dallas. Jun 15, 2018 #4 ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. We strive ...Aug 3, 2008 · The pump is mounted in the filter housing on the frame and the connector is at the front of it. The pink and black wire should have 12 volts with the key on for about 30 seconds. If the pump has voltage but is not running, then your pump has failed. If there is no voltage then check fuse 2.40 in the central junction box.2001 chevy 2500hd 6.6 diesel u1800 code truck runs great but the sev eng lite stay on i checked all wires & conect to icm ... 05 chevy 2500hd 4x4 6.6 duramax diesel code p2149 fuel injector group b supply voltage circuit open p0208 injector circuit open #8 I assume that the injector is bad could i get the proceedure to repla ...My 04 silverado duramax blew the edm fuse. replaced now only running of 4 cylinders. throwing codes p1226, 1229, 1235, 1244. also a u1800. Is the ficm bad? read moreP1050 code def level sensor 19. Can't find any for sure info anywhere on 2019 duramax Def level sensor. Is it built into the pump? Or is it a separate assemble, when I look up the part numbers it just shows the pump and the module, but there's something else plugged into the center of the def tank. I can't see the part number on …The Duramax code P01F0 is a red signal for your car. You should be aware of the signs of this code to solve the problem as soon as you can. Filling up the thermostat with coolant might solve the problem temporarily. It is best to replace the old one with a new thermostat.Expert: GM Tech (Cam) replied 3 years ago. Almost always this is the brake pedal switch for the brakes, a poor contact in there causes this code with is the brake switch cruise contacts. If you want to test then see the instructions below. Switch Test. 1. Ignition OFF, disconnect the stop lamp switch. 2.Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Duramax Powertrain. Reductant Temp. Sensor - P205B. Jump to Latest Follow 17K ... My Innova codepuller wouldn't pull the actual code but it did reset the CEL a couple of times. The third time it went on I was facing a return trip back to Arkansas so I didn't want to chance any breakdowns or issues ...on star ran a diagnostics on my 03 6.6. lb7 an said their was something wrong with my fuel management an they got a code of U1800 an to take it to... in this thread in this sub-forum in the entire site. Advanced Search Cancel ... Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain. code help. Jump to Latest Follow 1 - 2 of 2 ...strokeit355 Discussion starter. 32 posts · Joined 2013. #1 · Apr 8, 2015. Hi guys after a bit of help diagnosing my truck, getting a u1800 code that I can't get to bottom of. The other night the truck started ok and ran for a few seconds but then died and hasn't restarted since. I checked all the basics first and then put a scan tool on it .The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs ...Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain. u1096 u1000 codes ..help meeeee. Jump to Latest Follow 21K ... Yesterday I go to check monitors and I have both of these codes stored. Truck starts up and runs fine . I did a little research and it seems like the U1000 is usually accompanied by another code and thats ...A lot to take in. It’s never been easier to get customized DNA to code for anything you like. All you need is a simple translation method and a little money. For example, Adrien Lo...The P205B code is generally easy to diagnose because the engine cannot properly operate if the reductant tank temperature sensor is faulty. The fix, however, may require more effort and know-how than regular car maintenance. The good news is that you might not have to do it again if you use the right replacement parts.2003 2500HD Duramax LB7 w/Allison 1000 has intermittent shift problems and has DTC codes P0700, U2104 and U2105. I clear the codes, shift goes back to normal for a few days and then problem re-occurs. I took to dealer and they reprogrammed the TCM and could not reproduce the problem.While it was out I drove the truck waiting on new part. New part came in and after installing it I noticed the above codes and the following issues. 1) Gear indicator light on dash do not work. 2) Trans fluid temp guage not working. 3) Truck will not shift into 4 Lo, just flashes light. 4) When shifting to M, will not display current gear.Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain Codes C0035 & U1000. Jump ... I have had these two codes for months. C0035 & U1000. ... U1800 is loss of comm to the FICM) but couldn't find anything that tells exactly what's missing on the CAN buss to set off a U1000. From reading some of @Ron Nielson link, ...3 posts · Joined 2013. #1 · Mar 26, 2013. I have a 2012 3500. A few months ago the check engine light came on. When I took it to get looked at on my local auto hobby shop, I received three codes from the shop. The codes are $7E8, $7EA, and $7EE.Help, New Truck and P0700, U2104, U2105, and U2106 Codes. So I just purchased this truck and drove it 1200 miles home. Got about 14 MPGs and about half way home the check engine light came on. When I got home I ran the codes. P0700 is the tranny telling the computer there is a problem and needs the TCM to be read by a tech 2.Chevy / GMC Duramax 07.5-10 LMM Forums. 07.5-10 LMM Duramax Powertrain P0401 Code. Jump to Latest Follow ... I have a 2008 GMC LMM 12800 miles I keep getting a P0401 code restricted EGR flow. I replace EGR valve and motor, Cleaned EGR manifold, replace EGR manifold MAP sensor, Replace MAF sensor, replace air filter, (stock replacement) Forced a ...Labor: 1.0. To diagnose the P0090 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.Aug 27, 2012 · Hello, I Have an 03 Reg Cab 2500HD Duramax/Allison 4x4 all stock, throwing codes P0090 Fuel Pressure Regulator and U1800 No communication with FICM. Truck wont start, display PRNDL and gauges are dead.9 posts · Joined 2013. #7 · Jul 1, 2014. Have a new to me 06 with the P0762 code. On start up, reverse and neutral, forward gears, then 4th only if that. Shifted through 1-5, then 6th didn't engage, sounded like it was trying. Second and Fourth, Fifth worked, so clutch packs OK.Water Pump Failure. Fuel Filter Housing O-ring Leaks. Blown Head Gasket. Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7’s: Crankshafts + connecting rods break at high hp.I haven't had any codes at all. But today I started my truck and then went to head back inside and the truck stalled and won't start. Shows 4 abs codes and one dsw U1000 code. I can not figure this out. 2005 Chevy 2500HD LLY, Crew Cab, Short box, Fully Loaded. Cognito Kazuaki complete suspension w/ Fox shocks, Cognito UCA's, Cognito braces ...My 04 silverado duramax blew the edm fuse. replaced now only running of 4 cylinders. throwing codes p1226, 1229, 1235, 1244. also a u1800. Is the ficm bad? read more2001 6.6L Duramax Diesel (LB7)) C/K-truck Heavy Duty (GVW >8500) ENGINE DIAGNOSTIC PARAMETERS 2001file9.doc 2001file9.doc P0094 1. Delta RP @ DFCO 2. fuel flow range check @ DFCO Fuel System Small Leak Detected 1. Delta rail pressure <= 30MPa 2.Commanded pump flow is less than 6000mm3/sec @ 40 MPa, 5740mm3/sec @ 60 MPa,Google (Duramax U0105) or what ever your code is, this will bring up all the diesel site and there fix for this code. Sure wouldn't want to replace one, ouch! ... The code was U1800. 2003 chevy 2500hd dmax/allison cc/sb 4X4 285/75/16 Goodyear Duratrak Magnaflow muffler and custom muffler backTorque Converter Chatter. Bad solenoid. Debris blockage in the valve body. Improper C3 lubrication. Electrical issues / bad. Again, this is a great place to start diagnosing your P0700 codes for 2001-2004.5 (LB7 & LLY) Allison-equipped HD trucks. However, final diagnostics should always be done in person by a professional.You’ve probably seen somewhere someone saying coding vs scripting. When I first saw that, I thought that those two are the same things, but the more I learned I found out that ther...2. Points. 0. Jul 14, 2007. #1. I have a 2003 chevrolet 2500 HD 4wd with the 6.6 diesel and 5 spd allison tranny. I have noticed it started to shift funny (hard shifts and shifting into the next gear at higher rpms under low load/low throttle) I got three trouble codes, P0700,U2104,U2105, I am fairly skilled at wrenching and currently the ...Please help! possible FICM failure. I have a 2003 duramax with the 6.6l LB7. I stopped at the stop sign and the truck just died and now it wont start. Its throwing a u1800c code which is lost communication with Fuel Injector Control Module. I checked all the fuses and relays and dint find anything. i also checked the wires and plugs going to ...3 posts · Joined 2013. #1 · Mar 26, 2013. I have a 2012 3500. A few months ago the check engine light came on. When I took it to get looked at on my local auto hobby shop, I received three codes from the shop. The codes are $7E8, $7EA, and $7EE.My 2500HD of 118K miles starting throwing network codes this week. All stock... The truck runs fine most of the day, then without warning the trans will start shifting at odd RPM's, power drops a bit... and the check engine light may or may not illuminate. I'm getting: U2104 CAN Bus Reset Counter Overrun. U2105 ECS Comm lost. U1800 FICM …TDC U18DE. Wife bought a new 2021 the middle of November give or take. Truck had the check engine light come on the next morning. Long story short it has been in the shop more than we have had it. I have 3 different printouts from ONSTAR for the stored trouble codes.16 posts · Joined 2012. #1 · Apr 7, 2013. i replaced the injectors in my truck and after i got everything hooked up the truck would not start. it has codes p0193 and u1800. fuel rail pressure sensor high voltage and unable to communicate with FICM. i have check all the harness connections including FICM, fuel regulator, fuel rail pressure ...Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain ... to see a fuel leak than it is to see a vacuum leak anyways get a scanner and look at rail pressure if you can and any codes that shod narrow it down hope you figure it out ... Rescanned again and kept constantly getting u1800 and 2149. We looked for obvious things ...Some customers of 2002-04 model year Chevrolet Silverado; and GMC Sierra trucks, equipped with a 6.6L diesel V8 (LB7) engine, and California emissions (YF5/NE1), or Clean Fuel Fleet emissions (VCL), may experience a condition where the engine glow plugs may fail. Failure of the glow plugs on these vehicles will cause …2003 LB7 Duramax EFI live tune FASS Fuel pump US Gear Exhaust Brake Mag-Hytec Deep Transmission Pan High Cap Diff Cover ... Just a few common U**** codes u1000, u0105, u1016, u1041, u1800, u2104,u2105, u2106, 2020 GMC Sierra SLT 3500 CC/SB L5P 3/14/20 Payload 3726lbs. AirLift LoadLifter 7500 XLJul 31, 2018 · 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.Chev / GMC Duramax 2020+ LM2 Forums. 2020+ LM2 Duramax Powertrain P1098 - Coolant control valve fixed ... My 21 Sierra started throwing the P1098 code at 63k miles and blasting fans at 100% power. For a while I could restart the engine and it would go away, eventually that stopped working. I learned it was the coolant control valve that was ...When CICS finds the corrupt storage, 030D system dumps occur inDFHSMGF. While IPCS is processing the dump, the corrupt QPH chain causesthe dump formatter to go into a loop. Messages and SDUMPs issued are -DFHSM0002 code X'030D' in DFHSMGF. (many of these)DFHSM0002 code X'0316') in DFHSMGF. DFHSM0002 code X'031E' in DFHSMGF.I am getting a U1800 code (Lost comm w/ fuel injector module) P0090 P0193 P0380 P06022 I read , I have a 2002 2500hd 4x4 6.6l codes are: p0380,p0540,p0090,u1800,u1000, 2017 Duramax engine light code P1339. Jump to Latest Follow 17K views 3 replies 4 p, From my googling I have not found anyone else with this problem it is completely inte, 2001 chevy 2500hd 6.6 diesel u1800 code truck runs great but the sev eng lite stay on i checked , 16 posts · Joined 2012. #1 · Apr 7, 2013. i rep, Duramax Diesel engine RPO codes include: LB7. VIN Digit: 1. Applications, 2001 LB7 Duramax 3500 Dually - STOCK. Save Share. ... The U, U1800 - SI2000 diag and TAC are no help Jump to Latest Follow 3K v, 2015 2500 check engine code P21DD. I have a 2015 Dur, I got one of those scanners and it came up with 2 codes...1st: P, 33 posts · Joined 2011. #3 · Nov 26, 2013. I, May 20, 2010 · Yes. The ECM lost communications , Pulled the codes and the codes are; P0700 U2105 U2106 U1800 .., P1050 code def level sensor 19. Can't find any for sure info anywhe, MTL_Dmax. 5856 posts · Joined 2010. #9 · Jul 19, 201, My edge gives me a u1800 code, communication problem with t, strokeit355 Discussion starter. 32 posts · Joined 2013. #.