: Ensure your vehicle's battery is stable (connect a charger if necessary) and the ignition is in the correct position. Communication errors often occur if the voltage drops below 12V during the protocol handshake.
is a staple in the ECU (Engine Control Unit) tuning world, prized for its ability to read and write via the OBD2 port. However, few errors are as frustrating as the dreaded "Protocol Not Found" message. kess v2 protocol not found