Citazione Originally Written by blackwolf76 Visualizza Messaggio
You have to take into consideration the power consumption and the size of the tires. At low speed? as a percentage ? a little, but if you go on the highway of course, the deviation increases...

For one thing, with my car, and always the same nav simply by mounting new tires instead of the smooth, the deviation ranged 3/4 km / h on the highway, let alone if you had wheels with a size of radius more, what not to imprtobabile given that the drive current are prepared for the assembly of many of the measures of the wheels.
yes, I fully agree with your observation, but, if it were as you say, even speed? read from the ECU should be on a different wavelength... instead ? busted only one that is displayed in the speedometer.
It follows that the problem ? linked only to the latter.
I see if I find one in the demolition, and I do a little bit of experiments.
Then I'll know
Thanks to all of you.