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Thread: 1999 Durango SLT+ 5.9 Magnum return to stock and Security

  1. #1
    Potential Tuner
    Join Date
    Feb 2020
    Posts
    5

    1999 Durango SLT+ 5.9 Magnum return to stock and Security

    Bought it new, loved it, scared me once in a while.
    About the third dealer trip ('99-'01?) they death flashed me - never the same
    I have confirmed sticker numbers, etc.

    Over the years no real mods, just:
    variable timing set,
    and EQ version of stock heads.

    So, I would want to return this / wake this up a bit.

    Does anyone have real data on that death flash?
    (Such as reduced timing 2 -10 degrees from 2000 to 5000 rpm.)
    Or data from a never flashed engine?

    Any other suggestions?

    On a recent read for archive, it wouldn't restart on first try (the security light was on), second was OK.
    SLT so I have any / all enhanced security stuff.
    Coincidence?
    Are there issues with connected/disconnecting and security?

    THX any and all!
    99 Durango 5.9
    16 Challenger 3.6

  2. #2

    5.9 jgc stock tune.

    Quote Originally Posted by tshephard View Post
    Bought it new, loved it, scared me once in a while.
    About the third dealer trip ('99-'01?) they death flashed me - never the same
    I have confirmed sticker numbers, etc.

    Over the years no real mods, just:
    variable timing set,
    and EQ version of stock heads.

    So, I would want to return this / wake this up a bit.

    Does anyone have real data on that death flash?
    (Such as reduced timing 2 -10 degrees from 2000 to 5000 rpm.)
    Or data from a never flashed engine?

    Any other suggestions?

    On a recent read for archive, it wouldn't restart on first try (the security light was on), second was OK.
    SLT so I have any / all enhanced security stuff.
    Coincidence?
    Are there issues with connected/disconnecting and security?

    THX any and all!
    1998 Jeep 5.9.hpt