SERT tunning error

Discussion in 'Electrical' started by tech03, Jun 17, 2008.

  1. tech03

    tech03 Member

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    trying to use a race tuner on a 04 FLSTC, bike has pipes and a highflow. when i hit program ecm, it gets about 25% and stops with a message unable to load bootloader. i tried and older verision of se software and had the same results any ideas would be greatly appreciated. i'm using a laptop with windows vista and a usb to serial adapter, i can read vin when i click get info. i've tried the latest version "L" and then "G".
     
  2. Fisher

    Fisher Account Removed

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    Did you have a stage download previously?If so you'll need to reflash the ECM to stock before tuning with the SERT.The adaptor may be causing the problem.Try a laptop with a seriel port.
     
  3. tech03

    tech03 Member

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    ECM is stock no previous download or cartridge. A laptop with a serial port is the problem, they just don't exist.
     
  4. Doc 1

    Doc 1 Member

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    The SERT will over write anything in the ECM so don't worry about a stock reflash. However the SERT does not work with Vista 99% of the time and the adapter doesn't allow the ECM to be programed in the order it needs so it quits at 25% to stop any damage to the ECM.
    Like Fisher said get an old computer with a serial port and Windows XP for a couple of hundred bucks just to use out in the garage on the bike...it will be well worth it.
    Good luck