What does a code 111 UNKNOWN PART NUMBER mean on a Bully Dog GT Tuner?
This means that the device doesn’t recognize the vehicle info in our database as a supported vehicle.
The most common reason for this error is having an updated calibration in your ECU that we have not yet seen.
The best course of action is to give us a call with the device, the vehicle, and access to a windows PC to further troubleshoot with one of our Technical Support Agents.
