Multiecuscan Elm327 Port Settings ((hot))

Before diving into the numbers, it is vital to understand why MES is pickier than other software. Generic OBD2 apps (like Torque or OBD Auto Doctor) use standard slow protocols. MultiECUScan, however, needs to talk to specific ECUs (Engine, ABS, Airbag, Transmission, Body Computer) using protocols like .

Windows loves to save power by turning off USB ports. This breaks MES mid-scan.

: Open Device Manager , expand the Ports (COM & LPT) section, and find the entry for your device (e.g., "USB Serial Port (COM3)").