Hello, I recently bought an apu1 and i am trying to get it to just data log for now. I have it setup properly in tuner pro per the instructions on moates. Stand-Alone Datalogging


  1. Hook the APU1 up to the PC USB port and place the outer horizontal switch in the standalone, ‘away from USB port’ position (toward outside). It doesn’t matter whether the AutoProm is connected to the ECM chip socket because it gets power for standalone data logging from the USB port.
  2. Connect the ALDL cable to the car’s ALDL connection. Place the inner horizontal switch on the AutoProm backpanel in the proper position for your vehicle and mode desired: inboard=”10k across A-B”, outboard=”open between A-B”.
  3. Load up your favorite datalogging program on the PC, such as “TunerPro”, “WinALDL”, or “TTS DataMaster”. You may need to select an ADS file to define your datastream if using TunerPro. Turn on the key and start logging data! To stop, just turn car off and disconnect hardware. Keep in mind that in this mode, the hardware will not be ‘detected’ like the AutoProm mode, and that you’ll need to specify which USB Serial Port number (hopefully COM3 or COM4) has been allocated to the port in the datalogging software preferences.

Right now tuner pro just says connecting but never actually connects. I am not sure what to try next. Thanks