: Requires a high-quality ELM327 Bluetooth interface. Recommended adapters include the OBDLink MX and vLinker MC+. OS & Internet
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | App says "No response from ECU" | ELM327 does not support K-Line or CAN | Switch to a v1.5+ adapter; check wiring | | Connection drops during bi-directional test | Bluetooth interference or low voltage | Plug a battery charger into the car; move phone closer | | "Module not supported" error | Outdated APK file | Find the 2025 database version | | App crashes on Android 13/14 | Missing permissions | Grant Location and Nearby devices permissions manually |
Provides native support for Electronic Control Units, allowing for much more detailed data than generic scan tools. Real-Time Monitoring:
: Requires Android 8.0 or higher for the latest version.