There is no reason to stop the vehicle or engine when changing tunes so long as all of the calibrations "burned" to the Hydra are of the same calibration family.
It is not recommended to change them on acceleration or when doing something such as driving through an intersection, railroad crossing, or the drive through JUST IN CASE a stall occurs (rare).
__________________
Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes.
SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory!
|