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Thread: trying to tune sd and it went into reduced power mode

  1. #1
    Tuner in Training
    Join Date
    Dec 2013
    Posts
    11

    trying to tune sd and it went into reduced power mode

    im new to all of this so please bear with me.

    the car is a 99 vette with cai, cam, 80mm t body, full exhaust with cat delete.
    I don't know much about the cam, it was there when I purchased the car but it dosent seem to be huge.

    I found this guide

    http://www.hptuners.com/help/vcm_edi...to_user_sd.htm

    I read and reread it multiple times. I followed everything so I think. I loaded the cal into the car and let it warm up. got it up to temp and took off. just about that time it went into reduced power. so I turned around and reloaded stock back into it. would somebody mind looking at this and tell me what I am missing.
    like I said, I am just starting out with the tuner and this was my first step. any help would be appreciated.

    here is my sdtuning file I made

    sdstarter1.hpt

  2. #2
    Advanced Tuner
    Join Date
    Aug 2009
    Location
    Naples, FL
    Posts
    339
    Get us a log of when it happens

  3. #3
    Tuner in Training
    Join Date
    Dec 2013
    Posts
    11
    I knew that was coming I hadn't hit the record button yet and all I wanted to do was get it back home at the time. I will try to reload the cal and record it.

  4. #4
    Tuner in Training
    Join Date
    Dec 2013
    Posts
    11
    Quote Originally Posted by Fire67 View Post
    Get us a log of when it happens
    here you go

    reducedpower.hpl

  5. #5
    Didn't view the log (on Mac), but almost certainly exceeded airflow limits under engine diagnostics for P0068/1514. Increase those accordingly (~25% initially) and see if your problem goes away.

  6. #6
    Tuner in Training
    Join Date
    Dec 2013
    Posts
    11
    that worked, thanks for the help im now on my third sd log