It is believed that the twisting of the testimony on the speedometer The owners of the machines are done for mercenary purposes. It should be noted that this is not always the case. Screwing readings are also carried out in such cases as replacing the device for a new, diagnostics of the device, adjustment, for car rejuvenation, extension of warranty service.
As a rule, to wind the speedometer by car, you need a lot of effort and knowledge of the structure of the car, but we will need only a few items for this, namely: wrench, screwdriver, pliers, programmer, adapter connection to the ECU (electron-on-board device), Computer, software.It should be remembered that without the knowledge of automotive electronics it is almost impossible to perform such work. Therefore, it is better to trust this business more experienced masters who can solve the task correctly and qualitatively.