Not really data logging so slighty offtopic but simple reading : Which program can read our ECU via an ELM327 USB interface with the proper cable ?
My mechanic has bought an ELM327 USB interface and diagnostic cables and i tried several programs but none of them could communicate with my cars ECU. We tested the interface and the cable with a 156 ECU with success.
I found the FiatEcuScan program but not yet tested it although i cannot found our ECU in that programs database.

ps.: Last year we tried a pro device, namely the Bosch KTS 540. My mechanics 155 1.8 was communicate with it, My Q4 wasnt.