Connecting on /dev/cu.vLinkerMC via elm327, target 0xD5 source 0xF5, fast init... Connection failed: adapter did not return a prompt for 'ATZ'; partial: '' Things to check, in order: 1. Ignition on, engine off. The ECU sleeps otherwise. 2. Diagnostic connector pinout -- confirm before suspecting anything else. 3. Try --init slow (5-baud) if fast init times out. 4. On an ELM327 clone, KWP support is often broken; try the KKL cable. (full session log: logs/tunie-info-20260826-193336.txt)