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  1. S

    (SOLVED) Weird fuel pressure symptoms

    It should want to but out of all vehicles kodiqk trucks have some weird crap happen with fueling that you just don’t see on normal trucks. Sent from my iPhone using Tapatalk
  2. S

    (SOLVED) Weird fuel pressure symptoms

    0089 indicates a regulator issue. Either some debris is causing it to stick or not move properly or the electrical circuit is bad in it. It’s a electro magnet basically. Sent from my iPhone using Tapatalk
  3. S

    L5P fuel system upgrade

    Fuel pump code is related to the factory lift pump. You need to check to see how the lift pump holding up under demand and maybe have to check pump rpm’s to se how they are doing as well. The lift pump under this circumstance can cause you other code as well as the map sensor being dirty. I...
  4. S

    L5P fuel system upgrade

    What codes do you get? Sent from my iPhone using Tapatalk
  5. S

    L5P fuel system upgrade

    The stock system is pretty reliable but you can put a cp3 in place of the hp4 if you feel the need. S&S has a pump kit that uses the factory lift pump. Exergy/ WC Fab combo kit requires a low pressure supply ump like the Airdog pumps. Unless you are wanting more than 700 hp you won’t need to...
  6. S

    LB7: SAC-style Injector Life

    Keeping the stock turbo and running sac 45 would not add more why it tuned properly. The truck should run cleaner than stock and get Breyer fuel economy than stock. Sac nozzles add one orifice and change the spray angle either 2 or 3 degrees and will be a dual plain spray pattern as well. That’s...
  7. S

    Low coolant temp= clogged dpf ?

    Heck egr function as well and turbo vane position desired vs actual. If those are off it can cause a maf reading issue and cause premature regeneration as well. Egr systems cause more DPF issues than any other single item. Sent from my iPhone using Tapatalk
  8. S

    Torque Converter Questions

    1074 over the 1058 all day. Sent from my iPhone using Tapatalk
  9. S

    Over fueling

    In the idle spooling area you will find the fueling if the 100’s may be less fuel than the 60’s. Especially in the 10mm3-20mm3 and lower rail pressures. That’s the main reason the engine loped with the 60 over tune. It didn’t have enough fuel so it jumped back and forth in the table to find the...
  10. S

    05 LLY Sleeper Build

    These definitely do not restrict flow. Sent from my iPhone using Tapatalk
  11. S

    MAF readings

    Graph will be something similar to this. There are many ways to tune. Some are better than others. Sent from my iPhone using Tapatalk
  12. S

    MAF readings

    I will give you a couple bits of information and you will have to figure out the rest. At the idle Hz input 35 and at your max Hz input 500 and make your adjustments accordingly in between to get it to run and fuel correctly. The goal would be to see 37-40 at idle and mid 500’s at wot. Sent...
  13. S

    MAF readings

    A couple of us who tune trucks are telling you the same as what you already know. The Maf mapping is wrong. The sensor heats up and air cools it. The rate at which it cools give a analog piece if information that converts to a maf reading. Your intake is different enough from what it should be...
  14. S

    MAF readings

    LML will see more at wot than previous years. You should see 40 at idle and around 500 at wot early generations. LML 40 idle and usually 500-600 at wot. Sent from my iPhone using Tapatalk
  15. S

    MAF readings

    If he could see that it read 600 all the time then it is a very easy fix to make it read correctly. Sent from my iPhone using Tapatalk
  16. S

    MAF readings

    It is definitely not scaled correctly. Sent from my iPhone using Tapatalk
  17. S

    I was in Denial about headgaskets

    Charging 5250 here if needing new castings it’s 7250. Sent from my iPhone using Tapatalk
  18. S

    Controlling boost while spooling

    Second gear start will help you but going to a 25-2700 stall convertor would help as well. Sent from my iPhone using Tapatalk
  19. S

    LLY - Cracked piston

    The noise you hear from the motor is three things. Too much rail pressure at idle, timing and probably will need some pilot pulse changes. LLY trucks have the loudest injectors of all version Duramax engines. My 200 overs I only have to run 42 Mia at idle to not have hazing. I have never had to...
  20. S

    Twins with Twins, Anyone?

    I haven’t seen a aftermarket damper yet that did not need honing to get the press interference numbers right. Most of them will have instructions that let you know that. Sent from my iPhone using Tapatalk
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