PS
What really curious,..
I finally figured out where the instrument of control of the consumption takes and it calculates the miles ahead..
In addition to the ****llo of the tank measuring the quantity of fuel injected, but what is most important to measure the return from the injectors.
In fact, the system now measures just.... what has never been done in so many years down the road. Probably when the correction reaches the limit, the calculation becomes too rough, and then wrong!