Peeing off the side
deer
It can lead to an accident
Change the fuel filter first,
Check timing/timing belt
Press the brakes or down shift
Check timing belt
fuel pump?
Check to see if you are getting fuel and spark
perhaps if it was loose or the conductor was cracked.
it is either the erg valve or the timing is off.
speed sensor
why does it matter if you're driving down a hill? At least it didn't cut off when you were driving up a hill? And I don't know why it would cut off I'm 13.