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Thread: E38 Reduced power mode

  1. #1
    Join Date
    Mar 2008

    Default E38 Reduced power mode

    I was having some issues tuning a 2010 Camaro. After pulling my hair out and still not finding the issue, I've decided to try a new E38 PCM. For now let's not discuss what those issues were. I got another PCM from a 2010 Camaro with the same service #. After installing the new PCM, I did a full reflash with all the resets and relearns (anti theft, crank, idle, imobilizer so on). I even had onstar do a relearn procedure. I transferred the VE tables and MAF tables from the previous PCM. The car drives perfectly with all the right trims but under medium to hard acceleration it goes into Power Redution Mode (No codes). What's causing this? What can I do to prevent this?

  2. #2


    What is done to the car????


    2006 ZO6 895/866 with APS TT
    2010 SSRS Camaro HTR-900TT (798/801)
    2011 HTR-850R Camaro
    2012 ZL1 Auto (10.33@135 MPH) Video Here!

  3. #3
    Join Date
    Mar 2008


    Headers, air box, Magnuson SC. I've done 15-20 of these and never had a problem tuning them. After having problems with the fuel trims, I diagnosed and narrowed the problem to the PCM. With the new PCM everthing is as it is supposed be except going into power reduction mode. The old PCM did not do this.

  4. #4
    Lifetime Member
    Join Date
    Apr 2008


    easy, post your file and will do it for you. Then, you just need to compare both files to view the changes.

    Odd Boy

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