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Thread: New 6.4 cam idle tuning

  1. #1
    Tuner in Training
    Join Date
    Feb 2018
    Posts
    15

    New 6.4 cam idle tuning

    I had a collapsed lifter and wiped my cam so I had it replaced with same cam. Now it surges at low speed especially when coming to a stop. It sometimes dips below 500 rpms then shakes back up to 700-750 range. I?ve tried raising the idle but it still drops down when coming to a stop. I don?t get how my tune would need to be changed when it?s the same setup.

  2. #2
    Advanced Tuner
    Join Date
    Jul 2015
    Posts
    802
    If you replaced the cam with the same thing. I would start looking at a mechanical issue, problem with the install, etc.

    Post a log of the problem.

  3. #3
    Tuner in Training
    Join Date
    Feb 2018
    Posts
    15
    Log WR3.hpl

  4. #4
    Tuner in Training
    Join Date
    Feb 2018
    Posts
    15
    It runs fine until operation temp then it dies if I try to throw it in reverse. Runs good when I get on it. I just don?t understand