I recently have been using my SCG1 WB through serial port and it was logging correctly but it would keep disappearing when I started logging unless I restart the laptop while it?s connected. I figured I?d try the pro link and see if it helps. It no longer disappears when I start logging but I can?t get it to read correctly, the math I used with the serial port connection doesn?t work. I?ve looked online and found some other values and at first they seem to be accurate but after a while of driving or idling the values are way off between what the gauge reads and what HPT is seeing. Any help would be greatly appreciated.