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  1. michiganmax

    Knocking sound at 2000 rpms

    The tune was posted by McRat. Its a 20-20 tow tune. I did not bump everything up as far as he said. I have a v2 flashscan. Sent from my iPhone using Tapatalk
  2. michiganmax

    Knocking sound at 2000 rpms

    Hi everyone, I have a 01 ext cab sb I replaced all my injectors spring 2014. I bought stock Bosch injectors. The smoke went away, but started throwing low rail pressure code. Put a new fpr in, Solved that problem. The engine ran quiet for a while. Now when the engine is under a load at 2000 rpm...
  3. michiganmax

    Cp3 or fuel press. Regulator?

    It is still the p0089 code. It doesn't surge at a idle. When I am driving down the road and I let off the gas to slow down and the tranns free wheels the motor will make a slight loping sound. Sent from my iPhone using Tapatalk
  4. michiganmax

    Cp3 or fuel press. Regulator?

    The truck had bad injectors when I bought it. The light was not on but it had the same stored code. I replaced the pass. Side injectors, drove it for a week, no light, but still had injector noise. Took it to a local diesel shop to have the balance rate done, drivers side was now bad. When I...
  5. michiganmax

    Cp3 or fuel press. Regulator?

    Well I replaced the fuel line, cleared DTC code. The truck ran good, seemed to have better response. Put about 10 miles on it and the check engine light comes back on. The truck still has lots of power. When I put the peddle down it goes until I let off the pedal, it has never fallen on its...
  6. michiganmax

    Cp3 or fuel press. Regulator?

    Well I know what I am doing tomorrow night. Thanks for the info. Sent from my iPhone using Tapatalk
  7. michiganmax

    Cp3 or fuel press. Regulator?

    I can cut the hose off and replace it. Can I use hose clamps for the new hose or do I have to buy a special hose and clamps? I would like to say thanks to all of you guys for taking the time to answer my question and help me out. Really appreciate it. Sent from my iPhone using Tapatalk
  8. michiganmax

    Cp3 or fuel press. Regulator?

    The two fuel lines that come up the side of the motor. Which one is the supply? Sent from my iPhone using Tapatalk
  9. michiganmax

    Cp3 or fuel press. Regulator?

    I am getting a DTC code of P0089. I checked the fuel lines, and the larger line has a kink in it. It also feels soft right at the kink. I am not sure how to command full rail pressure. I just picked up the truck 2 1/2 months ago from a dealer. The truck has 228,000 on it. I do not know how...
  10. michiganmax

    Cp3 or fuel press. Regulator?

    First off, I am working on a 01 ECSB. I have a check engine light on. It comes up low rail pressure. When hooked up to the efi, at 2000 rpms my desired rail pressure is 12,078. My commanded rail pressure current is 1,241. The check Engine light comes on and goes off at random. The truck still...
  11. michiganmax

    Could use some help! ? Injectors

    Yes OEM parts, Bosch injectors from merchant auto. I soaked the injector lines in clr, then blew them out. I did not inspect for nicks and imperfections. I just found out that some injector line seals go bad, and that could cause a injector noise and fuel in the crank case. Sent from my iPhone...
  12. michiganmax

    Could use some help! ? Injectors

    I have replaced all the seals, o rings, gaskets. Sent from my iPhone using Tapatalk
  13. michiganmax

    Could use some help! ? Injectors

    Can you get a fuel leak by over tightening a injector line or a return line? And will that make a injector sound like its bad? Sent from my iPhone using Tapatalk
  14. michiganmax

    Could use some help! ? Injectors

    Ok I have run the truck for a week. At first a slight injector noise, slowly got worse. Today I put 150 miles on it, when returned to town I noticed sitting at a light the truck would run a little rough, like it was missing. I stopped and checked the oil, to find there was a very little sign of...
  15. michiganmax

    Could use some help! ? Injectors

    So I had my flow rates done. #3 & #5 injector was high. I bought 2 new Bosch injectors, all I could afford. So my question is, what are the odds that after pulling the motor down and back together, the other two injectors would still be good? I did pull the 2 good injectors and cleaned them...
  16. michiganmax

    Rebuilding your own injector?

    If the injector is cracked, is that why I puts fuel into the oil? If it isn't doing that, would it be fine to replace the nozzle and reset the cup? Sent from my iPhone using Tapatalk
  17. michiganmax

    Rebuilding your own injector?

    So I need to put new injectors in my 01 2500HD ex/sb. I have been looking into rebuilding my own. It doesn't look like it would be to bad, just careful and time consuming. My next question is if I have Bosch injectors, does Bosch sell nozzles, or does it not matter who makes the nozzle? Sent...
  18. michiganmax

    Could use some help! ? Injectors

    I live in Traverse City, I do travel to Big Rapids and Cedar Springs every other weekend.
  19. michiganmax

    Could use some help! ? Injectors

    Can a GM scanner tell me what injector is not right? Or will I have to go to a dealership? I don't have the funds to pick up a EFI Live. I don't know anybody that has one. Sent from my iPhone using Tapatalk
  20. michiganmax

    Could use some help! ? Injectors

    The injectors that are in the truck are Bosch. Should I stick with Bosch or is there a cheaper one that will do the same? They would be stock. I do plan on getting a tuner for it. What are your thoughts. I appreciate all the advice you all have given me so far. Thank you Sent from my iPhone...
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