Side note: If you need hosting for this forum contact me, its sooooooo slooooooooooow! I run a server farm and might be able to help.
not using usb serial, no. On my laptop I'm using a PCMCIA serial adapter, but just to be sure I am now testing on my desktop pc with a real serial port, same symptoms.
Still having issues, but at least now I think I understand _why_, but will need help in figuring out how to correct the problem. The ultimate issue is that the version of megatune I am running (apparently the latest available, 2.25 which I downloaded off the VEMS site) WILL NOT at ANY TIME establish a successful connection via the 'test' option in the menus. I think it has to do with the configuration of the version of megatune I'm running rather than a problem with the ecu or actual communications.. here's why:
I've got two versions of the VEMS upgrader tool on my hard drive, only ONE of them will connect to the ecu and allow me to do a firmware upgrade/verify: V3GUI-audi-1.1.24 ... the V3GUI-release WILL NOT talk to the ECU.
What to do next?