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  1. 2004LB7

    Fuel rail pressure

    Highly dependent on the turbo you're running and how much timing you're willing to run. 500 on stock turbo and injectors is not the best combo. Lots of timing and fuel makes it run smoky and turbo at it's max Larger injectors lowers the timing and PW requirements to ease the pressure on the...
  2. 2004LB7

    WTF is going on with my EFILIVE??

    The question is, do the pids work? Is the pid list populated? I'm with cougar on this most programs needing a temp file for temp storage or whatever just makes one and deletes it as needed. This behavior looks more like a reference list that is missing.
  3. 2004LB7

    Lb7 injector issue balance rate stuck at +7.0

    Looks like injector 3 is not contributing much and the ECM us trying to add more fuel to get it to balance with the rest. #6 is probably a fluke and is a result of number 3 Usually the first thing to look at when you just got done putting injectors in / doing a rebuild is the connection nuts...
  4. 2004LB7

    WTF is going on with my EFILIVE??

    7.5 is still good. Looks like a file got corrupt or deleted. Have you tried reinstalled it yet?
  5. 2004LB7

    Password Hacked Here

    I've heard this fallacy for so long. I've always wondered where people come up with this. Another helpful tip is checking the left side of the address bar for the padlock or secure connection. That would show wether the connection is encrypted or not. Most websites have end to end encryption...
  6. 2004LB7

    March '26 Chat -- Madness is the Different Drummer

    I'd probably do something stupid and convert it to an EV.
  7. 2004LB7

    Password Hacked Here

    I can attest he got the money because I purchased all those gift cards and gave him the numbers on them. Just waiting on the refund for the accidental overpayment 🤣
  8. 2004LB7

    Insights into Fuel Problem

    This set of ratchets, specifically the hex bit ratchet has saved my but many times and taken hours off some jobs. It reaches and swivels where other wrenches can't. Combined with the 4-6" hex bits Tom mentioned and it can pull that regulator without needing to remove a lot of the other parts
  9. 2004LB7

    Insights into Fuel Problem

    This looks like a decent write-up https://www.duramaxforum.com/threads/guide-lb7-fuel-pressure-regulator-replacement.848946/
  10. 2004LB7

    Insights into Fuel Problem

    V2 as in EFI live V2 The regulator is in the valley of the engine attached to the CP3 and pointing towards the firewall. The CP3 is near the front of the engine. The intake horn can be removed for more access. I've done it both ways. Depending on your assortment of tools, one may be better then...
  11. 2004LB7

    Insights into Fuel Problem

    You need a bidirectional scanner. There are many. Hard to recommend any particular brand. I use a V2 for mine. But an old V1 would work for yours. Let's see what others say for a current bidirectional scanner 4-5 hours seems high. That sounds like the number for the inexperienced.
  12. 2004LB7

    Insights into Fuel Problem

    I'm going to guess that the failed filter let debris into the fuel and that may be messing with the regulator on the pump. A stuck or sticky regulator will have a hard time maintaining the correct pressure and you can get that code. You can try pulling the regulator and cleaning it. But if...
  13. 2004LB7

    Password Hacked Here

    Jon, any chance you can PM me that email, not forward but as an attachment?. Or at least copy the header information. It's possible it's a fishing email and not from this site. Header information should reveal that. Or at least rule out DD if it's not from us
  14. 2004LB7

    LB7 Oil Pressure Flexing during Acceleration

    Since you say it's during acceleration, maybe the engine is torquing over and moving a broken wire enough to disconnect
  15. 2004LB7

    LB7 Oil Pressure Flexing during Acceleration

    Those gauge stepper motors are known to act up and do weird stuff like that or get stuck. You can replace them yourself if you're handy with a soldering iron or there is places on ebay that do that for you.
  16. 2004LB7

    Map sensor and barometric pressure sensor

  17. 2004LB7

    Something a little different

    Welcome Awesome build. We love to see projects like this here. I'll move this over to the repower/transplant so it can get more views
  18. 2004LB7

    1/8 mile discussion and time slips post here!

    updated
  19. 2004LB7

    Fuel rail pressure

    Then plug back in the injectors and run the test again and see if you get fuel. Normal cranking mm3 command
  20. 2004LB7

    Fuel rail pressure

    Disconnect the injector pigtail connectors and crank the engine. See if you get any diesel mist coming out of the glow plug holes Next, do a compression test Then, read balance rates and main rate mm3 Report results here
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