Flash: 6.7L Diagnostic And System Improvements
This bulletin involves selectively erasing and reprogramming the Engine Control Module
(ECM) with new software.
Several software improvements are available for vehicles equipped with a Cummins 6.7L
Turbo Diesel. These improvements are separated into the following categories:
NOTE: There will be a choice between two calibrations. One for vehicles that utilize
an ammonia sensor and one for vehicles that have had the ammonia sensor
removed. Be sure to select the correct software based on vehicle
configuration.
