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  1. M

    2024 Duramax issues?

    Me too.
  2. M

    2018 l5p high county U18A2 help

    So the way GM does it is like the old token ring network?
  3. M

    2018 l5p high county U18A2 help

    The fuel pump control module is a known problem, mine went out at about 35,000 miles.
  4. M

    So I did something stupid this weekend.....

    The loaner car was probably in valet mode.
  5. M

    anyway to unlock efi live tune

    Is the tuner still in business, if not it's abandonware.
  6. M

    TCM, Dashboard, and OBD2 Power Issue

    What year truck? It could be the under hood fuse block. They have been known to house rodents or get bad corrosion..
  7. M

    3500 DRW Rear GAWR

    It also gets rid of the bed and trailer interference problem
  8. M

    Help please, dropped driveshaft

    Did you see his impeccable set of high quality tools?
  9. M

    L5P Troubles, please help!

    2019 Chevy Truck Silverado 3500 4WD V8-6.6L DSL Turbo Data Communications (L5P) Vehicle ALL Diagnostic Trouble Codes ( DTC ) Testing and Inspection U Code Charts U18A2 Data Communications (L5P) DATA COMMUNICATIONS (L5P) Document ID: 5542132 Diagnostic Instructions Perform the Diagnostic...
  10. M

    L5P Troubles, please help!

    It wouldn't do any good to hook up new modules if your ecm has them tuned out. You just need to start tracing wires to see which one is shorted, disconnected, or corroded up. Or just replace the fuel pump driver control module. Mine had to be replaced earlier this year. Mine was still under...
  11. M

    L5P Troubles, please help!

    You have a wiring problem. Connectors, wiring, or a bad module. Fix the u codes and the p code may go away. The dummy plugs should be easy to check, ask the supplier for the pin outs to see how to test them. Then check for signals on each plug. For the bus trouble shooting it's better to have...
  12. M

    Limp mode

    It's probably in the wiring, if replacing the sensors didn't work.
  13. M

    Anodizing at home

    Bullets.
  14. M

    Please help…lml with compound turbos and tuning issues

    I think you're looking at the wrong border.
  15. M

    December '22 Chat -- "Shitter's Full!" -- and other Christmas "crap"!

    Moth balls work pretty good too.
  16. M

    Electrical Problems

    And you need a better scanner. The p 0700 code is from the ecm, but the actual code is stored in the tcm. You need to be able to read the tcm codes.
  17. M

    Best Battery maintainer for our dual battery setups?

    Get at least a 5 amp.
  18. M

    random discharge of batteries

    The batteries went down far enough that you lost the driver or fob memory positions. That procedure is to reset zero on a bunch of things. You either have a module not going to sleep or one or both batteries are on the way out. Always replace them in pairs.
  19. M

    Exhaust Brake - trouble, VERY FRUSTRATED

    Get an edge cts 3 or banks idash and monitor the vane position. One the edge the position will indicate 100% when it's working.
  20. M

    Exhaust Brake - trouble, VERY FRUSTRATED

    The torque converter doesn't lock in lower gears. Your trying to descend a mountain with the clutch pedal pushed in. I believe the 2022+ will lock in first.
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