KD Basic ECM programming for Duramax LB7

Basic tune changes include passlock reset for engine swaps, speedo recalibration, factory updates, and fixing of any Diagnostic Trouble Code issues that were covered by GM factory updates. Also includes ECM recovery from failed tuning attempts and reset to a good clean factory tune.

“This is not a complete tune, only a basic fix and requires the ECM to be sent in to us or a suitable core must be provided. We will not provide a core for this item. It also does not fix 2001 limp mode issues. See Kennedy Custom tuning for this.” -JK