would a bad fuel tank pressure regulator cause the car to stop when not moving on 1999 Ford Contour

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
when I stop at stop lights and the car is in drive it will some times cut off. what causes this
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No it would cause this, its used for evap self test.
It would cause what? What would cause it to stutter and stop when I stop moving?