From 2010 and later Cummins have blocked the reading of their ECM's, you need to locate the correct stock tune to download for the vehicle you are trying to tune.
https://forum.efilive.com/showthread...k-tune-library
From 2010 and later Cummins have blocked the reading of their ECM's, you need to locate the correct stock tune to download for the vehicle you are trying to tune.
https://forum.efilive.com/showthread...k-tune-library
I no longer monitor the forum, please either post your question or create a support ticket.