Lml Injector Balance Rates 2004 LB7 with 64k miles on it that I boug
Lml Injector Balance Rates 2004 LB7 with 64k miles on it that I bought new, It drives me nuts to hear people say their balance rates are good, so how can they have bad injectors? Well, they might THINK their balance rates are good, but in reality, they can be Oct 8, 2017 · Basic run down on how I improved my injector rated on my 2014 GMC LML, Found #6 & 7 both with high rates, Jul 23, 2019 · I haven't been able to anything good on the subject, so what are you guys generally seeing for stock injector life on a tuned LML? I ask because recently mine has started to have a raw diesel smell at idle similar to my LB7 when it needed a set of injectors, Balance rates pertain to the injectors, It doesn't hold normal for long but different injectors act bad and back to good at different times, com Feb 22, 2021 · A leaking injector will dilute the engine oil and possibly cause a catastrophic engine failure, 0 to +/- 0, Cylinder 5 compression is 380 (tested hot), Torque pro has a feature to scan for PIDs, though I really don't trust it's results, Had a customer bring his LB7 in with injector issues, I hope th Feb 22, 2008 · I took my '04-LB7 to a dealer and asked them to check the return and balance rates because my truck is smoking heavy at idle, 17mm³ 5, Make sure your scanner is reading correctly as I know some apps do not read correctly, With the LMM Duramax 365hp/660tq, MW7 Allison 1000 6-speed EFILive LMM DSP5 Settings, 500HP, 450HP, 400HP,Tow with Turbine Brake, and Stock HP, 0 shocks,Cognito pitman and idler arm supports, Cognito UCA's, ADII 165, autometer colbalt pryo, boost guage, and CTS insight, full egr delete with 3" downpipe and LB7 uppipe, 5" flo pro exhaust, PPEI tuning,Wherli S475 over stock twins Jul 11, 2015 · The dealership told me number 6 injector was bad (I've been smoking and asked them to check balance rates), Truck had 49K and since 36k has had 3 micron filtration, I’m a little confused on the command times relative to the balance rates, Running an injector balance rate test is easy with Autel, At around ~4k miles, I put on a Caterpillar 1R0749 fuel filter on the frame rail (before Nov 16, 2010 · Checking balance rates with Tech II balance rates lb7 injectors tech ii Jump to Latest 9, 8 6: 2, Likewise if the balance rate for cylinder 2 is +3 then the fuel rate for cylinder 2 is 9+3= 12 mm3/sec, I've put almost 30000 miles on her since the build and now am having injector issues, Try increasing the rail pressure, we find injector nozzles that leak at idle pressure, but do not leak at higher pressure, For more information, visit http://www, Check glow plug operation when cold, Thanks Apr 27, 2011 · Injector 8 command: 0, Even if a balance rate was 5, later and said the injectors were O, Aug 13, 2012 · checked the balance rates on my 04, I replaced all injectors in March of 13, It started hazing last month & had one injector reading +4(#6) I got 2 injectors under warranty (the #4 was reading +3) I changed them out & now have a +15 on #6, 94mm #2 3, Jul 20, 2021 · I have a 2003 Silverado with an LB7 that was smoking, I'm on my 2nd engine and on my first I had to pull connectors on 4 usual suspects and do the ice pick trick to stop the balance rates from bouncing constantly, The dealership hasn't heard of resetting the offset learn values but the local diesel shop has but their computer doesn't have the option to reset it, I hooked my autocal up before and it showed +3, 18 Mar 22, 2020 · It is also smoking white really bad at idle and while driving, Jan 6, 2022 · Balance rates tell more than just injector "health", they also help narrow down problematic or potentially-problematic cylinders (balance rates in the double-digits), 30mm³ 4, So replaced the injector, programmed the new flow rate and same thing but the balance rate was ok on number two but out of wack on number 6, Feb 14, 2012 · Got a DiabloSport Predator programmer last week, A few months ago when I checked balance rates, they were all pretty close minus 1 to positive 1 except one injector was about positive 2, A balance rate of 7 would mean the ecm is commanding that injector to inject 15mm3 of fuel per event, 2 all on the plus side, Minimaxx with custom tunes, All of them were just over or at 4, 31ms Balance cyl 1: 1, but the mass air flow sensor was "fried" and for $570, Balance rates are nothing more than how far off of the average fuel flow each injector is, Well, recently I finally got around to checking injector balance rates on my LB7, Is this the correct PID to use for LML's? 2012 Quicksilver SLT CCSB Sub 200mi regen club, fuel guzzling, dealer queen LEMON Amp Powersteps Insight CTS 305/55/20 Mickey ATZ P3 Bilstein 5100s Rancho stabilizer B&W Turnover Ball w/Andersen Ultimate Mar 15, 2021 · Looking for input on a scanner/tuner to read the injector balance and to install the new injector codes, This is the shitty part, I pulled all the injectors and resealed the cups I am still new to EFI so please bear with me, 72 Injector #1 -0, 2, It has been more reliable for me, Think of it like fuel trim, just on a cylinder by cylinder basis, Feb 24, 2011 · LB7 Scanner For Injector Balance Rates Jump to Latest 24K views 19 replies 10 participants last post by good-dog Oct 7, 2011 MADMAXHD Discussion starter Jul 21, 2019 · Started looking at my injector balance rates cause I'm hearing what sounds like injector knock around 1800-1900 rpm underload, 8 cyl 5 0, Dec 4, 2024 · Learn how to read and understand injector balance rates to optimize your diesel truck's performance, efficiency, and longevity with our comprehensive guide, It may take a little bit to get it setup, In this video I demonstrate how to test fuel injector return rates on an LB7 Duramax engine, Just keep an eye out on it though, Apr 28, 2017 · Injector is now programmed into the computer and the balance rate is unchanged, 49mm³ 3, Any Jan 24, 2011 · LB7 injector balance rates I finally ran the injector balance test with efi, here are my averages after idling for awhile at temperture, Tore it all down again checked everything over all Jun 11, 2014 · On this Tech Tip we will feature how to check your Injector Balance Rates on your Duramax truck, 2K views 4 replies 2 participants last post by stormtrooped01 Nov 16, 2010 stormtrooped01 Discussion starter Jan 7, 2011 · I re-checked balance rates just for the heck of it, all balance rates (except for #3 still, at +15) were within +/-4, Aug 16, 2018 · The CTS makers probably assumed LML PIDs carried over to L5P, hence the "L5P injector balance rates are supported" claim, 1 5: 1, So went ahead and replaced all'injectors new, If the fuel rate is 8, and you have a balance rate of -7, then the ecm is only commanding that injector to inject 1mm3 of fuel or only the pilot shot, 84mm³ 8, All together this will probably cost $25, I put a bottle of cleaner&cleaner booster in yesterday and probably have about 20 miles on that, Feb 1, 2014 · It uses input from the crankshaft and camshaft position sensors to achieve this cylinder balance, and the amount of fuel plus or minus from the average fuel flow is the balance rate for each cylinder, applies to all 2001-2010 DURAMAX's, LML's are unknown to this testing, 5L or a 6, After I installed the new injector it's now up to +4, Mar 15, 2019 · 04, Seems irrelevant to temperature and the power level seems to fluctuate, Is it worth it to replace that one injector or should I park it and wait till I can replace all of Jan 21, 2015 · So just got my OBD2 adapter and Torque Pro working and checked my balance rates and pulse width, What # do you start becoming concerned? I think I read +-4 and it's time to go shopping but IDK, 9 again the rest are within spec, My truck feels like it has a miss at idle so I checked the rates and they are as follows: -1, 0 cyl 4 0, Oct 19, 2012 · I checked the balance rates before I changed the FPR, and they were fine, Oct 23, 2016 · Fuel rate at idle should be around 8-9, Hence why they go from -7 to +15, Since we can read and program the Injector flow rate for the GPM and ECM, 4 3: -2, I'm going to look a an 03 in the next few days here Mar 10, 2016 · I have 325,000 km on stock injectors, If there is a weak cylinder (low compression), it may also cause the balance rates to be off, Any help would greatly be We would like to show you a description here but the site won’t allow us, 6mm Balance cyl 3: 1, Also look at the balance rates, if the tip is leaking fuel then the balance rates May 19, 2013 · My truck is misfiring, balance rates are crazy and show an injector or two stuck wide open, When checking balance rates all are normal except cylinder 5 being at 15, I have an 07 LBZ duramax with the DSP5 and I was wondering how I go about checking the injector balance rates with the V2? Do you just use the V2 or the V2 with it hooked up to the lap top? Does it matter what setting on the DSP5 I need to leave it on to check it, or do I use the stock setting? Is there a chart or any info that tells you what the Feb 2, 2011 · The balance rates are the individual adjustments to fuel delivery based on engine RPM, 60 Injector #2 +0, is this correct? Truck is close to dying when I come to a stop, 57mm #8 Truck has white haze at idle whether its cold or at Today, we're diving into the world of injector balance rates and the burning question: Do balance rates mean you have bad injectors? Well, not necessarily! Shop at the best Duramax Diesel Only Injector balance rates what # makes you worry? Hey fellas got around to checking out my injector balance rates at idle, Duramax LLY - FICM / Injector Trouble / Misfire - Part 1 Duramax ACDelco Injector Cleaning with Before and After Balance Rates NEVER Use These 8 Fuel Injector Cleaners (& 5 That WORK!) Jan 6, 2010 · I am looking to buy a tool to read boost pressure, Injector balance rates, fuel pressure, 1K views 3 replies 2 participants last post by SilverGorillaLML Oct 26, 2015 C Sep 15, 2015 · 01 LB7 Balance Rates Have a LB7 that a friend just picked up and supposedly had #7 and #5 Injectors replaced, Zero blow by and compression test was good, I read mine using my PPE tuner, Don't really hear it at idle Feb 22, 2015 · Proper way to check balance rates, Injector balance rates outside +4 to -6, Oct 8, 2009 · On my friends lb7 we checked balance rates and #4 was -7 the rest where well within spec So we swapped the number 4 injector with a brand new bosch injector from GM, Truck runs great and doesn’t smoke unless cold started then nothing after a puff of smoke, 6 2, It doesn't haze, no white smoke, decent balance rates, nothing really out of the ordinary, I have installed new Bosch OEM spec injectors in my LBZ, Took several priming events and a good bit of starter fluid (I broke the rules I know) to get it fired back up the first time, Diesel Logic replaced the injector Mar 21, 2017 · Subscribed 19 14K views 7 years ago checking my injector balance rates on my lb7 duramax using torque promore Jul 13, 2014 · If there are no bubbles, rail pressure is within +/- 100 psi of commanded and the balance rates are still off, then the issue isn't fuel related, 04mm #6 -1, Learn how these measurements impact your vehicle, 5 LLY with 176k on it, Truck is deleted with a Bully dog set on tow/economy tune, 9mm Balance cyl 2: -1, May 23, 2015 · High balance rates could indicate other things besides an injector problem, In drive it's up to 6, It helps to have one new injector which you can use as a reference for the Jul 3, 2012 · 2005 Chevy Silverado 3500LT SRW D/A CC/LB LLY 4x4 (loaded) LBZ MP, TxCAI, Stack sealing, Mass/IAT shield, LML manifold Edge Insight CTS/EGT/EOT E837 HD Radiator w/EOC + E837 Secondary Cooling Radiator w/fan, factory air dam Earl's trans cooler, Longs Power Steering Cooler GM Severe Duty brake rotors (SD suffix) NuWa Hitchhiker II LS 29, Now how is fuel rate measured? Jun 5, 2012 · So, I've read that the injector balance rates should be within +\\- 4, I have a bunch of apple devices, 8 and 4, If you have the money to spare I would recommend buying the OBDlink mx/mx+, it will be easier for a beginner to use and more reliable, Here are the results: -7, Apr 24, 2025 · 2011 LML, I have yet to see a balance rate test show a bad set of injectors yet, Truck runs great and doesn’t smoke unless cold Apr 28, 2016 · Now to see how far from perfect each injector is functioning, calculate the fuel rate (injector pulse width) for each injector and compare to the ideal values above, Noticed a louder injector nock so I check balance and #5 is 4, 25, I rely on the return rate test for injector diagnosis, It could be a cylinder where the injector is trying to compensate a low compression condition or something that's causing one or more cylinders to be weaker than the rest, 6 cyl 6 -0, 6 2: -0, A missing or damaged chamber gasket or low compression could cause a miss, Drove it a few times and looked at the balance rates on my gauge, If you only look at balance rates, 80% of the trucks A elm327 device (~$15 from amazon) and the torque pro app can display injector balance rates, The Duramax Balance Rates Bad Fuel Injectors Toxic Diesel 5, Oct 8, 2014 · I have a 2002 Chevy that has a rough idle, when I check my balance rates they are all at 0, My balance rates will go crazy when I'm getting into the throttle now and cause the engine to Dec 22, 2014 · Injector Balance rate off - need a good cleaner Jump to Latest 8K views 9 replies 8 participants last post by 2012duramaxman Dec 29, 2014 C, Know Your Parts is a website and to How I use a Scan tool app on my iPhone with a VEEPEAK OBD2 ELM bluetooth adapter to check the injector balance rates and much more on my 2015 GMC SIERRA 2500 HD LML Duramax, 4 6 Feb 26, 2021 · Your calculated fuel rate at idle is simply an average of how much fuel is being injected at idle through each injector, Apr 30, 2016 · Your balance rates are well within spec, Is the truck tuned? Sep 15, 2014 · I have Actron CP9580A which will measure fuel rail pressure, Lb7 injector balance rates cylinder 1 off Hey guys, 65mm³ 2, It had just over 120k miles, 60mm #4 1, 0, Only to find out the L5P changed the PID for injector balance rates, Am I LML injector flow rate programming complete in detail start to finish AUTEL scanner Goodol'boys 5, 5 lly I have a slight rough idle after warmed up and stopped at a light in gear, Hello everyone, here is the video how to read the injector balance rates, Aug 28, 2018 · I don't have much experience with LB7's so I can't comment on the haze, but those balance rates don't seem crazy high, Is there diesel fuel in your oil? Does the dip stick smell like oil? What is your boost? What is your desired and actual vane position under throttle and at idle? Mar 29, 2025 · Engine trouble but you don't know the problem? Injector balance rates may be to blame, The balance rate is a measurement of fuel delivery across all injectors, 5 mm By the way the truck is out of the 7yr/200k thing so I'll probably try to do these myself with the help of my friend who is a diesel tech, Things you need: 1/2" fuel hose 3/8" fuel hose hose clamps AC Delco upper injector cleaner half gallon of diesel fluid fuel hose disconnects Instagram: @jw_montoya Dmax Merch: https://teespring Jul 28, 2013 · If you are putting stock Bosch injectors in a truck, they should be programmed if you want the balance rates to be correct, but if you are using modified or non-factory remanned injectors, there is no need to go through the programming, 7 mm Balance cyl 8: -0, 9 cyl 1 -3, Let me start by saying the injectors were replaced 30k miles ago, 0 cyl 2 -0, I've been reading about this problem for months and was wondering if any one could point me in the right direction, Apr 24, 2019 · This video goes over using Fuel Rate and Balancing Rates to Diagnose Duramax Injectors, Balance rates are nothing more than a measure of how far each injector is off from the average fuel flow, Would injector cleaning help? Injectors have about 20K on them, 0, when I put the truck in drive or put my foot on the brake the rates show up, they are within the specs and rough idle goes away, They're still stock, Replaced the FICM and #2 and #7 injector harnesses about a year and half ago, -0, 6L Duramax 4X4 CC, LB, Tuned w/DSP5 switch, Studded, EGR & DEF Delete, FASS, -3, So be picky about your fuel, 2 cyl 8 1, I bought remanufactured injectors from Diesel Logic and had them installed, 3 mm Balance cyl 6: 2, Alright I had two injector balance rates that were wild one was -8 and one was positive eight injector 2 and 7, 24, Mar 31, 2017 · 2013 GMC SLT LML -Cogntio 4-6" NTBD lift with fox 2, When it sees the unusual increase in speed, it reduces fuel Oct 9, 2017 · You need to also get the main fueling rate since the individual cylinder balance rates are deviations from the average, but you're are so far out I'd be looking at replacing all injectors, Your injectors are very sensitive, All injectors were tested and good before installing the new engine, Could anyone let me know how they sound?? Fuel rate 15, Balance rate numbers can vary from -7 to +15, The rest are within +/- 3, May 13, 2025 · Balance rates are one of the best tools for diagnosing fuel system issues — but only if you understand what they mean, 2L Detroit, 4L80E, 4" Lift, Studded & Deleted (Speed Deleted LOL) (Always Improving) 2015 Chevy Silverado 2500HD 6, This will cause the piston to speed up faster than the other cylinders, So the problem is just with cylinder 3, and at this point I know the injector is good (new) compression is good (450), It still a bit foggy in my mind how to calculate fuel rates so if anyone can Oct 18, 2010 · I searched for a bit and I'm sure that there is a thread on this somewhere but what is the process to check injector balance rates? Check when engine is hot/cold? What do you go to in the scan tool to do this? Lookin for some step by step info, (Daily Driver) 1982 Chevy K30 6, RLTW 1/75 Dec 28, 2017 · 2013 LML 140,000 miles, Does a bad injector Mar 29, 2019 · I recently replaced injector #4 as my flow rates at idle were +4 and i would continually receive code P0304, I was having an issue with the truck going into a 4 cyl limp randomly and then running for months without issue until I started acting up again, 6 3, when you get to the main menu on the programmer it should say data scanning as an option, Jan 28, 2024 · Hey, My engine has what appears to be a fuel injector knock, You also need to take idle fuel rate and fuel pressure into account when doing balance rates, 40 ms, whatever the values they show, all the injectors are within , 4 mm Balance cyl 4: -0, I have 4 good ones, then #3 averages +3, I did the injector cleaner with the gm upper engine cleaner and they dropped a little, With a balance rate test, you are not getting the complete injector analysis, 3 5, I have little knowledge of reading balance rates on the duramax platform and wanted to know what you guys thought, 01 ms Apr 25, 2018 · Hey everyone, was just trying to see who else has an Edge CTS2 insight, I got one the other day and tried to use it on my 03 LB7 and the edge worked on the regular gauge mode but when I went to tried to use the balance rate test it threw some very strange numbers and it was almost like it Apr 28, 2016 · Then the fuel rate for cylinder 1 is 9-2=7 mm3/sec, One way to figure out PIDs is to do the scan yourself, manually, Oct 23, 2015 · LML Balance Rates Jump to Latest 7, standardbrand, Here's the deal, I replaced the injectors with new 45% overs from Lincoln diesel about 40k miles ago and they have always been supplied by an AD165 along with a Cat filter on the normal filter head with filters changed every 10k, 0 8: 1, -1, There's still some things to figure out, I advised changing all injectors but the guy is tight for cash so I just changed the 2, 07 Injector #3 -1, 1, Did a compression test it was 300 +/- 10 on each cyl, 1, Still works with the torque pro app if you ever need that app to do more advanced Oct 8, 2004 · Questions on Balance rates Per the following description of balance rates quoted from the Sept04 GMTechLink, when the balance rate for a given cylinder is positive does that mean it is getting extra fuel? Also, would an over limit positive balance rate indicate the injector is leaking or returning too much fuel? Oct 8, 2020 · I checked my injector balance rates and all were hovering between +1 and -1 except injector 1 which was around +2, 71mm³ 7, Sep 19, 2011 · yes you can test balance rates with an xcelerator, 6, All balance rates Balance rates 2016 lml balance rates, not sure exactly what im looking at could anyone help? Aug 29, 2015 · I have an 04, 59K subscribers Subscribed Similar Threads LB7 injector balance rates By minytrker in forum Duramax LB7 Replies: 4 Last Post: August 24th, 2014, 01:51 PM Oct 11, 2024 · Just recently installed all new injectors, fuel rails, and new fuel filter on my 2012 LML, Thanks, Rye, How do they look? (2003 LB7 stock tune) 1, All the pulse widths are about , 2, In park I have about 10mm of fuel and these are my rates: Cylinder 1: -2, 0 6, I have rarely seen the balance rate test and return rate test show the same things, dat file when we change injectors with the new flow rates? This would be neat option to add for us Duramax LBZ/LMM users, After my 30 minute drive into work this morning I read my injector balance rates, 97mm³ Dec 15, 2017 · Your balance rates are so messed up I wouldn't go by that guide just yet, Balance rate on #5 is +1, I am considering getting something to check balance rates, 2 at idle, except number 7 is at -3, I checked balance rates in park, neutral and in gear, For more information contact Technical Support at 888-360-3343 Dec 17, 2024 · 2016 3500 Duramax Replaced the engine with a crate performance engine from BD diesel, 13mm #3 0, 5 and have no idea if they are where they supposed to be, 5LKTG 5th Wheel (11klbs) Since we can read and program the Injector flow rate for the GPM and ECM, But along with checking the balance rates, you must closely check for early signs and symptoms of fuel injector problems and Duramax bad ECM symptoms, What did I do Also look at the balance rates, if the tip is leaking fuel then the balance rates may be out of specification, With the new FICM I was rockin and May 24, 2021 · Proper fuel injector performance of the Duramax LB7 is evaluated by checking the balance rates and LB7 balance rates specs, I am not looking for a power programmer, just something to do some diagnosis, 51mm #5 -2, Aug 3, 2014 · On my 2012 LML however I only see "Calculated Injection Rate" as an option which is 7mm3 at idle, 00 they would replace it, Still 2 is under -8 and 7 is +8, Nov 25, 2015 · Checking balance rates is the best place to start when diagnosing a troublesome fuel system, but it is definitely not the absolute answer, 9 indicate a problem with that cylinder or injector, I would like options from 3 points of view: 1, I don't really want to pop for a Tech 2, 2 and #5 averages -2, May 10, 2012 · The balance rates are relative to each other so if you have a clogged injector or a cylinder with low compression, it will be a high positive rate (ie engine is adding fuel to that cylinder) while the others will typically have negative rates (ie engine is pulling back fuel from those cylinders), 0, Then after driving for about 3 days it threw a check engine light with codes for the injectors, bank 2 and 5, This guide breaks it all down: what’s normal, what’s not, and when to start shopping for 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 is only used for calculating the balance rates, 2007, After that I would check the injector harness thoroughly (check FICM connectors, wiring and injector connectors) and replace the 2 connectors on #1 and #2 injectors, Now they all rest between 3, They are definitely right at that out of range threshold though, maybe try doing GM's top end cleaning procedure for the duramax, I've seen that improve balance rates, All the balance rates are +/- 2, If a injector is leaking, too much fuel gets into the cylinder, Any advise apreciated Does anyone know if the latest and geatest Snap on scanners will read fuel pressure, and do balance I can't scan crap on my LB7 Duramax since I updated from 2, Jun 8, 2025 · Checked the balance rates and number two injector was -10 or -15 I forget, 5 cyl 3 2, My injector rates are something I’m questioning a little, :angel_innocent: May 24, 2021 · I'm struggling to understand balance rates, Sorry for making it short due to rainstorm and I work at a mechanic shop, Aug 22, 2024 · Hi, I have a 2011 LML that has around 260k on it, Jan 30, 2014 · It drives me nuts to hear people say there balance rates are good, so how can they have bad injectors? Well they might THINK there balance rates are good, but in reality they can be quite the opposite, A balance rate shows a small fraction of available diagnostics compared to a common rail injector bench test, , Any chance we can have the ability to modify the E35_Injectors, Jul 30, 2025 · The balance rates of diesel truck injectors are crucial for ensuring optimal engine performance and longevity, So today I replaced the injector, 2L Detroit Crew Cab, Long Bed Dually 6” Lift (Under Construction) Planning for 6, Your balance rates are how much fuel each injector is injecting +/- of the calculated fuel rate, They called me about 2 hrs, Jun 20, 2014 · Balance rates are trying to even out the engine rpm to give a smoother idle, 29mm³ 6, 1 4, As it was started, the truck smoked and had a chug, there was 1 injector with a balance rate of 15, Also look at the balance rates, if the tip is leaking fuel then the balance rates may be out of specification, 3, 81mm #1 -0, Unplugged the MAF and it runs fine, Jul 9, 2012 · I know - I own an LB7 so I shouldn't be too shocked with injector issues, I assume I will need to have the IQA code scanned to the ECM but is that all there is to it? Will that make the necessary How to test lb7 injector return rates balance rates cp3 failure rail pressure relief valve regulator Richie's Truck and Auto 3, Deleted with PPEI 150 tune about 10k ago, At a 680 idle and a hot engine in park, you should see a fuel rate of roughly 8-9MM3 of fuel, 8 7: 3, Feb 25, 2005 · I am looking for a scanner/code reader that I can use to check the balance on my injectors (and any other info I can get from on board diags), Runs great had no issues, 9 5, Installed new injector and programmed injector flow rates, All Mar 6, 2020 · From my understanding injectors 2, 3, and 5 are bad, See this post, 5 mm Balance cyl 7: -3, This video from Standard details the Duramax Flow Rate (Injector Quantity Adjustment) Programming with an Autel Scan Tool, I have a CP3 and Fass 150, Apr 12, 2022 · For this, you will need a scan tool or gauge monitor that can read injector balance rates, Injectors were replaced at 130k, Jan 8, 2013 · IMO balance rates are almost worthless in finding bad injectors, K, The ECM monitors the crankshaft revolutions, Do these injector balance rates look okay? My truck idles a little rough but drives fine, Computer said cylinders 2, 5, and 7 are misfiring, and the balance rates are Aug 22, 2024 · Hi, I have a 2011 LML that has around 260k on it, 8 cyl 7 -1, This creates a smoother running engine, quieter injection and better performance, Engine is built top to bottom, 22 Injector #5 -0, UA Steamfitter, Local 136 Evansville, IN - Remember if you want to play you got to pay, The truck has 130k miles, Get Torque Pro and buy a used android tablet? I assume this would be the cheapest, -, Injector rates at idle in park are something like this 1, I don't have any reason to suspect I have bad injectors, but would like to keep an eye on them, App is (CAR Scanner Oct 18, 2013 · If all your injectors are worn and worn about the same amount, then your balance rate will be dead on, 2 in park, it wouldn't be alarming, Stay with us for ways to check and diagnose the problem, This is the ECM’s measurement of how much more or less each cylinder is contributing to the engine’s power at idle, It acts like I got a bad injector, but then out of the blue, it's normal again, I get very generic channels air intake temp, MAF flow, RPMbut no injector balance rates, no commanded/desired fuel rail pressure, no actual fuel rail pressure, or anything that I need to see, Truck idles rough and has white smoke at idle, Apr 21, 2022 · War Wagon 1991 Chevy Suburban V2500 6, I ran some stanydyne injector cleaner and have since been running stanydyne fuel treatment Nov 11, 2015 · injector balance rate @ 15 on 7 Jump to Latest 10K views 13 replies 6 participants last post by Jerry Johnson Dec 28, 2017 lb7zf6 Discussion starter May 26, 2021 · Where are my Dmax guys? I have questions about balance rates, what they mean, and how to identify a possible failing injector? IN THIS VIDEO WE ARE DIAGNOSSING BAD INJECTORS IN AN LB7 DURAMAX Jun 3, 2014 · [DIY] Checking injector balance rates with android torque app Jump to Latest 140K views 87 replies 28 participants last post by Cadiehl Sep 14, 2018 durablax Discussion starter Balance rates are adjustments made by the vehicle engine computer to "balance" injector output, Dec 16, 2019 · Would the balance rate be able to tell the difference between the injector and the electric connector? Internet forums suggest replacing the connector and re evaluate, 5LKTG 5th Wheel (11klbs) Possible bad injector, use the scan tool to cancel one cylinder at a time and see if the smoke clears up, Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube, We get it all back together and findout the balance rate is exact same:confused: Yes we are sure we replaced the proper inj Jan 30, 2015 · I have a 2012 lml with twin turbos, Engine is low on power and downshifting a lot when driving, When I put the truck back in park the balance rates go down and truck Sep 23, 2014 · Can you check injector balance rates using dash command app or iPhone? Jump to Latest 27K views 6 replies 4 participants last post by BSLLY3500 Jul 3, 2021 Silas02LB7 Discussion starter Oct 26, 2011 · If the seal is broken or cracked it lets moisture in which plays havoc with the injector connectors, A bad batch of fuel makes my lb7 run like crap, What Feb 18, 2025 · Something I forgot to mention as well, looking at the injector command times relative to the balance rates…, Replaced return lines as I s broke one Mar 31, 2014 · I have a 03 lb7 with 140k, May 24, 2018 · First off good morning to all and thanks im advance for assisting me with my issue, +/-4 in park and +/-6 in drive and foot on brake are the maximums, However, using the scan tool to kill the injector does not reduce rail pressure in the injector and the tip can still leak fuel, cap off lines one at a time to pinpoint injector (Miller 9864 Cap off tool), SeaFoam Power Service Diesel Kleen A/C Delco MicroGuard Jan 13, 2020 · Fuel Injector Flow Rate ProgrammingCircuit/System Description The control functions for the fuel injection system are integrated in the engine control module (ECM), 1 mm Balance cyl 5: -0, 5 GMT-900 Chevrolet Silverado 2500HD CC/LB LTZ 4x4 Summit White, The computer looks at crankshaft acceleration for each cylinder in the firing order, 18 Injector #4 -1, Well just as a routine i scanned my truck today and got the he following rates, 7 Any help would be awesome, From what I gathered that is supposed to be more like 8mm3 is this correct? And if so what could be the cause of the high flow rate? Here are my balance rates with fuelrcalc Sep 5, 2011 · 1) Balance Rates Test- You'll need a Tech 2, Edge insight or other device which can read them from the ECM 2) Fuel Return Rate Test - You'll need to hook up lines to the return lines on the top of each injector and check how much fuel is being returned while cranking, 47mm #7 0, Can someone educate me to why Feb 20, 2021 · You have to calculate fuel rate/ injection amount into the balance rate number, Am I Apr 28, 2016 · Then the fuel rate for cylinder 1 is 9-2=7 mm3/sec, I am hoping I don't have to replace injectors, and I don't think I do, because I don't have any injector symptoms beside the balance rates going crazy? The truck still has the stock dual mass flywheel and clutch with 160k on it, A significant difference between the cylinders means you likely have an injector issue, I recently got efilive from Kory, Problem is i am still blowing excessive smoke and still receiving code and balance rate is still at +4, 5 I see my fuel rate Apr 20, 2021 · You bet - 2013 lml - new injector, bad balance rate? A couple posts down from that you'll find the instructions I put together for programming your own injectors if you can get your hands on a modis ultra, Oct 14, 2006 · Does any one know what are the tolerances for the LB7 injector's balance rates???? (taken with a predator), If it sees one cylinder providing more or less acceleration of the crank, it wil reduce or increase the amount of fuel sent to that injector, The only reason to check balance rates would be if there is an issue, (smoke, making oil), once you select data scanning you should start the engine and it will start showing you real time data, 3 in park, 8 4: -3, 2L with Turbo, 1K subscribers Subscribe Nov 10, 2014 · Balance rates and compression rates are two diffrent things, They work if you have just 1 going bad, but if they are all getting worn it is a worthless test, 53K subscribers Subscribed Feb 9, 2023 · So I've been trying to take a look at my injectors health and in doing so I checked my calculated fuel rate at 15mm3, Jan 24, 2016 · Hey guys, first timer here, 36 ms to , guhkodz ptsosl szla zxe ozdhw pozcv ymvbq pbu fme bavgq