Would any of this give you the ability to data log?
Yes. You can log data in a CSV file that can be read by Excel, and the program will graph the data over time, and allow stepping through the data both forward and reverse.
I've come to believe that you can change the settings within the ECU as well (slewing?).
I've only reached the point of getting the data read and displayed and have quite a bit to learn yet, but the functionality seems much greater than a typical obd2 app. It's just not as convenient to use.
Much of the information was pulled from ChineseRiders forum as they looked for ways to diagnose issues with RX3 motorbikes. It confirmed I got the cabling correct as well.
I'm not familiar at all with how you are reading & displaying the data.The data is coming off the k-line in Keyword2000 protocol but the data stream doesn't appear to be ODB compliant, so you need the Delphi specific program. The program display is typical of old DOS programs.
Here is a screen shot of real-time monitoring you can find in the zip file content. I believe this is a set of readings from an RX3.
https://imgur.com/K926cPRYou can add and remove items to monitor, but the process is not intuitive and I haven't yet found good documentation on it yet.