I bought an older laptop (IBM ThinkPad 380Z) because it had a 9-pin serial port to connect the propane calibration software's interface cable. This laptop also has a single USB port and I was able to successfully install the W98SE USB driver. After configuring the USB port (com 2) for 38400 baud, the ScanTool.net v1.13 software was able to read the vehicle's (2003 Impala 3.8L) OBDII port properly.
The problem with the ScanTool.net software is that it doesn't yet have the ability to record any data from the OBDII scanner. It would be ideal if I could road test the vehicle to determine how to fine-tune the fuel map and check the data from the road test. From what I could tell, Digimoto Lite has this capability. However, there is no way to get it to run because I can't change Digimoto Lite's configuration from 9600 baud to 38400.
Is there something obvious I am missing or is this impossible to do?