Guys,
i have started to code a freeware datalogging software for TT cars. The only problem i have is that i have noticed that only VAG-COM tool / VWTOOL is working with my ECU, no chance to send
ATZ, AT.. commands to the ecu.
My Audi TT is 2001 225hp version,
and i cannot find ANYTHING how to read sensor values via RS232.
Can anybody help me please to get that thing working with my soft?
What should be sent to the ECU to read RPM's ?
Any protocol description?
Best wishes!
Roger.