[targa9]

Thank you for the feedback.

I always ran DIS57 at 9600 baud. When I moved up to ISTA-D I experimented with a 2004 dual K line car quite a bit although I didn't time anything. I'm fair sure the the time to interrogate all the modules dramatically improved as I increased the baud rates from 9600, and on that car I couldn't "break" the comms even using 115,200 baud.

In fact 115,200 baud has been fine (I think) on everything until I needed to work on an older car.

Now I appreciate you *really* know what you're talking about but I am better off with a really slow baud rate and a 4096 byte buffer? Those big buffers scare me. My experience with INPA, DIS etc. is the smaller the buffer the better (you're just making the PC work harder). I don't know the car protocols at all but I sort of expect the packets to be small and therefore with a larger buffer the responses could get queued?

I'm also sort of aware that the majority of the serious players on this forum will be using ICOM so this is a bit of niche for this forum but it would very handy to fully understand what the ideal (fastest yet safest) settings would be.