it clears parameters from sensors and re learns them
no it doesn't, only a "real" reset with f.i. mes does that....
The control unit implements the self-learning mode in the following conditions:
removing-refitting or replacement of the injection control unit
removing-refitting or replacement of the throttle body integrated with D.V.E.
removing-refitting or replacement of the rpm sensor/flywheel, for recognizing misfire.
The values memorized by the control unit are preserved if the battery is disconnected.
The control unit has a self-adaption function which recognizes changes in the engine which occur as a result of bedding-in and ageing processes of both components and the engine itself.
These changes are stored in the form of modifications to the basic mapping, and their purpose is to adapt the operation of the system to the gradual alterations in the engine and components compared with their characteristics when new.
This self-adaptation function also makes it possible to even out inevitable differences (due to production tolerances) in any replaced components.
From the exhaust gas analysis, the control unit changes the basic mapping in relation to the original characteristics of the new engine.
The self-adaptation parameters are not cancelled if the battery is disconnected.