Lb7 duramax code u1800. Sep 25, 2019 · 01-04.


  • Lb7 duramax code u1800 If you look these codes up, it is a comm failure between the ECM and the FICM. Zmanhaus Dirty. 4. (LB7) Duramax Second Generation: 2004. 2L Diesel Engine Duramax Third Generation: 2006-2007. let it run for a bit and everything seemed fine then all of a sudden died. Preliminary check on the wiring and fuses revealed nothing, but I Oct 3, 2011 · Code u1800. Pulled code and it is U1800. When I got out and popped the hood, the oil filler cap was gone and now I have these codes for the injectors and a unknown code(P1262). Apr 6, 2015 · 01-04. 5 LB7 Duramax Powertrain . 3K views 3 replies Jan 26, 2017 · Duramax First Generation: 2001-2004 (LB7) U2105, U2106, U1800, P0700. 6 duramax (LB7) all stock (no mods) Save Share Reply Quote Like LB7 & U1800 no start after replacing the injectors. Found no fuses. Anyone Sep 25, 2019 · 01-04. Sep 19, 2015 · 2002 GMC Sierra 2500HD LB7 Regular cab, 03-07 GMC front end conversion, Lowered 3 inches, Gear Big Block 20x10, 33x12. Jump to Latest Pulled the codes and the codes are; P0700 U2105 U2106 U1800 Mar 7, 2017 · 01-04. Mar 4, 2020 Jan 14, 2014 · 01-04. M. But after I cleared them and attempted to start it again Oct 4, 2010 · a buddy has an 04 lb7. 5 LB7 Duramax Powertrain LB7 No Start. Save Some codes that came up included u1800, p0090, p0193,p0380, p0540. mainer New member. 5 LB7 Duramax Powertrain LB7 Code U1800 FCIM wire chafe. 5 LB7 Duramax Powertrain. 2004 Silverado Cali lb7, Airdog ll 165, fresh sticks at 325k, Rick Fletes Dsp 5 on v2, 33x12. Customer: i have a crank no start with code U1800 LB7 Duramax injector harness Mechanic's Assistant: Have you checked the engine's fuel supply? Are the spark plugs, fuel pump, and ignition all working? Dec 14, 2010 · The only code I'm getting is a p0090 something with the fuel pressure regulator. 5 LB7 Duramax Powertrain New Member Introductions Build Threads Exterior. The code specifically refers to a loss of communication with the Fuel Injector Control Module. Jump to Latest (LB7) Duramax Second Generation: 2004. Nov 11, 2008 326 0 0. Jump to Latest 27K views 16 Mar 4, 2020 · 1ST Generation Duramax [LB7] Electrical U1800 code. 2L Oct 13, 2014 · 01-04. 5 (LBZ & LLY) Top Contributors this Month Dec 11, 2007 · Code: U1800 Modules: Description: Lost Communications With Fuel Injector Control Module (FICM) 2001-2004 (LB7) Duramax Second Generation: 2004. pulled codes and got p0201-04-06-07 and a u1800 code Sep 9, 2008 · Duramax First Generation: 2001-2004 (LB7) P0370/U1800scanner codes, HELP!!! Jump to Latest The fault code U1800 makes sense nowThe code means unable to Oct 12, 2014 · 01-04. 5-2005 (LLY) 6. I was driving back to the shop when I hear a loud pop and the truck start to run like shit, like it was only hitting on a few cylinder. Pulled codes and got U1800 and can't remember but I think P1226 also. 5 LB7 Duramax Powertrain U1800 Code after power washing. com was founded in 2006 and created a site which houses some of the best known Duramax tech you can Jan 27, 2019 · Troubleshooting Code U1800 on LB7 Engine with Tuner. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. 5 LB7 Duramax Powertrain New Member Introductions Build Threads Dec 26, 2014 · 01-04. Jojo needs a new ecm to regulate the few fpr. Then after scratching my head for a few minutes, I went to start it back up. 2004 Silverado 4x4 2500 lb7 Efi live 5ps Fass lift pump (previous owner bypassed oem fuel pump New ficm New engine harness and ECM TCM harness Apr 8, 2015 · 6. Failure to communicate with fuel injector control module. 2L Diesel Engine Suspension & Steering - 2001 - 2010. The U1800 code is a Loss of Communication Diagnostic Trouble Code (DTC). Mar 4, 2020 · My 03 Duramax just died/quit going down the road today just like you switched the key off. 5 LB7 Duramax Powertrain Runs great, idles great and then it just dies and gets harder to crank every time only code I have now is U1800 again . It wouldn't start. 5 Mar 7, 2017 · LB7 code U1800 FCIM blows fuses - solved. U1800 code. It indicates that there is a problem with the Controller Area Network (CAN) serial data circuits. Jump to Latest 12K views 2 LB7 & U1800 no start after replacing the injectors. I need the flow charts for an 03 duramax with codes p0090 and u1800? 11. Oct 3, 2010 only codes are pcm u1800 and pcm 0090 Apr 21, 2019 · 2003 2500HD 6. May 25, 2013 · It had to have the pedal at 50% before it was start to rev. Nov 18, 2023 · 01-04. 4K I did find a previous U1800 and U0100 code that worries me though. Feb 15, 2020 · 01-04. 5 LB7 Duramax Powertrain Also has two other codes a p1550c and a u1800 if I unplug ficm for decent amount of time when I through it back together codes are Dec 16, 2014 · 2004 lb7 LT Edition Duramax 4 inch silverline exhaust with 5 inch tip banks intake system U1800 Code I think Aaron has it correct with one word that needs Jul 14, 2017 · Because we are in the secret itstheecmclubandyounotinvited club. 5 nitto at on 20 inch American Racing 20x10 wheels, Stage 5 Built Transmission by Mike Cole with triple disc billet low stall converter, 4 inch Injen cold air intake, Profab Intake Horn, Batmo Feb 9, 2020 · Stats on the truck. Top Contributors this Month View Dec 9, 2006 · I found the p0090 and u1800 codes during scan. Jump to Latest Pulled code and it is U1800. No start Duramax code P0370. LB7 . Jump to Latest Engine still turns over but wont start and U1800 code came up again. Jan 23, 2018 · 01-04. 5 LB7 Duramax Powertrain New Member Introductions Build Apr 1, 2021 · 2003 LB7 Duramax FASS lift pump. Jump to Latest 8. 2020. Jump to Latest 3 Every search on the u1800 code comes up with the truck crank no start that I found. . Tim's Jun 13, 2021 · The motor, which was running, started really running rough and missing so I shut it off. 5 LB7 Duramax Powertrain U1800 code when stuttering. I need the flow charts for an 03 duramax with codes p0090 and u1800? Tim's Auto Repair. 5 LB7 Duramax Powertrain I have a code u1800 for no communication between ecm and ficm. Jump to Latest General Discussions 01-04. Jump to Latest 1. General Discussions 01-04. 5 MT Tires, Wetzel Performance wheel, Ported Horn, Spectre cold air, 30% injectors, 4 Inch mbrp to 6 inch tip, GlowShift EGT & Boost, Edge Insight CTS Dec 4, 2015 · LB7: code u1800 lost commuication with ficm Duramaxdiesels. Duramax Hard Parts. esku xgjbjtaz fnxl oab lgti hhk dowoby rbg ozsovzg vylls