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Thread: Target idle runaway - P59 SD

  1. #1

    Target idle runaway - P59 SD

    I believe that has been discussed before. Target idle adds 125rpm after 40 seconds idling.
    Demanding 600. Starts. Comes to idle. Adds 125 across the board. Changing idle through scanner follows as commanded.

    2004 P59 Silverado 1-bar SD RT

    Was there ever a solution?

    Tune and log attached.
    Attached Files Attached Files

  2. #2
    Senior Tuner edcmat-l1's Avatar
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    It may be completely irrelevant but why does it not have any manifold vacuum? I've done big giant solid roller cam motors that made more vacuum than this thing.

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  3. #3
    Cammed 4.8 - struggle is real

  4. #4
    Senior Tuner edcmat-l1's Avatar
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    Quote Originally Posted by MoBoost View Post
    Cammed 4.8 - struggle is real
    Doesn't seem right.

    EFI specialist
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