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  1. S

    DFM disabler released

    I’ve seen fuel trim mentioned on other threads, not about Dfm. What is fuel trim, mixture?
  2. S

    No Maps or Speed Limit

    Check with OnStar. I believe they control the data.
  3. S

    DFM disabler released

    And don’t forget to disconnect the battery negative.
  4. S

    DFM disabler released

    Park with the wheel hard over to the left. Use a floor jack to raise the frame a few inches and slide on your back from the nose. Simply bend the fender liner out of the way and unclip the wiring harness and snap in the new module and plug the original harness on to the new module. Pay attention...
  5. S

    It's finally here! 2024 Yukon XL 3.0L 4WD in Sterling Metallic with Dark Walnut

    Is that a wireless charger on the center console, top of the junk box?
  6. S

    6.2L Rough idle and poor low RPM response

    I’ll call it a slight stumble at idle, the tac will fluctuate 100rpm at idle. Don’t hear anything. Smother now, 1/2 of what it was. Next fill up will put me at 100% non ethanol. Curious how it idles then.
  7. S

    6.2L Rough idle and poor low RPM response

    2024 Tahoe 6.2 with 4000 miles always use 91. Always been a touch rough at idle. Took in for free oil change and asked the dealership to look at idle. They said no codes and was ok. Reading around the forums it seems there is agreement the idle is set too low from the factory, maybe causing a...
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