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  1. 07.5-10 LMM Duramax Powertrain
    Hey guys. I'm new to this forum but not new to duramax issues unfortunately. So about 2 weeks ago I put new big injectors into my LMM. I have not been able to get it to fire up since. I have an engine starter on the battery and it will sit there and crank with no fire forever. I've replaced...
  2. Aftermarket Mods.
    Hello all the plan is to make over 1,000 horse power on my lml soon i want to make at least 850 by the end of this summer but im trying to put together a mod list i was thinking probably a 12mm cp3 swap and 100 over injectors but i really hate buying parts twice so do i need to go 14mm pump and...
  3. Want to Buy Wanted: Lbz Cp3 Pump

    Parts For Sale
    Hey guys, long time lurker first time poster. Have diagnosed my fuel leak after painting and redoing my whole truck - typical. Im a bit short on funds so seeing if there is potentially someone out here with a cp3 prior to putting a new one on my Credit card. Looking for a good used Cp3 pump...
  4. 06-07 LBZ & LLY Duramax Powertrain
    I just fully deleted and tuned my lbz duramax will the HSP high flow bundle kit, and for some reason the truck now gives a check engine light (P0087) after 3,000 rpms. And I cannot figure out the problem. I just brought the truck in august with 275,000 miles on it. And it does have a airdog...
  5. 07.5-10 LMM Duramax Powertrain
    What have you guys been getting quoted for injector pump replacement? I thought book time was around 6 hours, but I'm getting quoted 18.
  6. General Discussion
    Hey lads, started some research but didnt get much further other than thinking its my cp3 going faulty or possibly injectors?? Every odd time I open the old girl up or lay into her a decent amount it responds by going into a "limp mode" where it wont go over 2,000rpm. I have to shut the truck...
  7. General Discussion
    Does anyone know where I can buy the short metering device extension cable and the temp sensor holding block, see the two items circled in red in the attached photo.
  8. 06-07 LBZ & LLY Duramax Powertrain
    I have a 2006 GMC 2500HD it has 324000 miles on it and the outlet pressure fitting cracked below the nut, i thought it was the fuel line but i was inorrect, i purchased a new fitting from Industrial Injection and the sent me the fitting, but it had straight threads, tth piece that was removed...
  9. 11-16 LML Duramax Powertrain
    I have a 2013 and about 2 weeks ago i had the p0191 code and i replaced the the FPr2 on the LH fuel rail it cleared the p0191 code and then a few days later the check engine light came back on and started throwing the P0087 code i haven't noticed any changes in performance or this all started...
  10. 04.5-05 LLY Duramax Powertrain
    replacing my headgaskets and putting studs not sure If i should worry bout injectors or cp3 while I'm there was wondering if known to have issues an how the cp3 last I am getting the mbrp downpipe to put on 2 just dont know what else i have to do i know it needs the hoses on the fuel lines any...
  11. 07.5-10 LMM Duramax Powertrain
    Whenever I climb grades my pickup goes into limp mode from low frp. I have rebuilt my fuel filter housing, race plug and replaced a rubber feed line. I do have a Fass 165 also. The actual frp is 22k to 23k max while the dfrp is 26k. 2008 LMM 179,000 miles. Bad injectors or bad cp3?
  12. General Discussion
    How much power can the stock cp3 fuel for?
  13. 11-16 LML Duramax Powertrain
    So I just bought the Fleece 750 10 mm stroker cp3 pump and a wehrli race conversion kit and keep reading some things with tuning required and some without tuning required... what’s the real story? Am I going to have to take this by a shop or just message one of the techs on my ezlynk? Don’t...
  14. General Discussion
    My airdog 1 150 went out a couple of months ago, wondering if it is bad on the cp3 to be run without lift? dont want to drain the rail and wear the pump or anything. run stock program dont have a tune
  15. 01-04.5 LB7 Duramax Powertrain
    i have changed my CP3 pump and Filter can't get it to turn over fault codes are P0193, P0380, P0540,and P0090 most of the fuel lines are empty tried to start it to prime the fuel lines drained battery 3 times still no go there is no fule primer button on the filter to prime the system with...
  16. Performance Upgrades
    Industrial Injection CP3 Stage I "Bag of Parts" Duramax anybody use this before or know of anyone who has?? im wondering if it would be worth it. my goal is 600-650 rwhp.
  17. Performance Upgrades
    Hey guy I just saw this and was wondering if there is any advantages in it or If it's even worth 40$$ Thanks!Hi flow fuel fitting 70% larger than stock
  18. 01-04.5 LB7 Duramax Powertrain
    Not sure if my cp3 is bad or what. I was thinking about upgrading to wicked diesel pump. Just wondering how it was to change them. Did my own injectors and put a ak5 turbo on my truck myself. Just wondering how it compared to doing injectors or swapping turbo
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