It all just depends. Funny thing to say but the computers do really controls everything. everything has a solenoid that makes things move a certain way or regulate it. So with these flash updates it might change the angle, the speed or just how much fuel is added in to the combustion and the list goes on.
A good example that was mention is the grille shutters to reduce drag. What do you think that operates off of? the solenoid, now if that were to go wrong it doesn't matter what signal or update the cpu sends.
A good example that was mention is the grille shutters to reduce drag. What do you think that operates off of? the solenoid, now if that were to go wrong it doesn't matter what signal or update the cpu sends.