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Thread: Knock problems ss/sc 07

  1. #1
    Tuner in Training
    Join Date
    Jun 2015
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    Knock problems ss/sc 07

    i have some knocks on my cobalt, i need help whith that, its stock only have injen intake
    charly cobalt stock.hptknock 1.hplconfig.cfg

  2. #2
    Advanced Tuner
    Join Date
    Mar 2014
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    231
    Not being familiar with your setup, I could be wrong but it looks to me like you are running a lot of ignition advance (33+ degrees) at WOT (7000rpm). I wouldn't think that's a good thing to do on pump gas.

  3. #3
    Senior Tuner
    Join Date
    Apr 2007
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    1,104
    factory gm tune?
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.

  4. #4
    Tuner in Training
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    Jun 2015
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    yes factory gm tune only disable all traction control tables, and 7000 rpms mod

  5. #5
    Tuner in Training
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    Jun 2015
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    im sorry this is my tunenew cobalt charly.hpt

  6. #6
    Senior Tuner
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    Apr 2007
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    1,104
    the lsj's did not have traction control. I think you're meaning torque management. What fuel is used?
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.

  7. #7
    Tuner in Training
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    Jun 2015
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    yes im sorry for that its torque management, 91 octane

  8. #8
    Senior Tuner
    Join Date
    Apr 2007
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    I would advise looking at mechanical issues first before you band air or blow it up by messing with the tune.

    Plugs, fuel filter. What is the fuel pressure under load? Whats are the plugs gapped at. New tensioner? New chain guides?
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.