For most Alfa Romeo, Fiat, and Lancia models, the ELM327 alone isn't enough. You will often need a "Yellow Adapter" (Adapter 3) to bridge the pins required to talk to the CAN network modules. High Latency Warnings
If Multiecuscan displays a "High Latency" warning during the test, return to Device Manager. Ensure no other programs are using the COM port and that your laptop is plugged into power; some "Battery Saver" modes can throttle USB port response times. multiecuscan elm327 port settings 2021
Right-click your USB Serial Port in Device Manager and select Properties. Go to the Port Settings tab. For most Alfa Romeo, Fiat, and Lancia models,