Why does a Chevy Suburban cuts off when you come to a stop?
The #1 problem with these vehicles is a weak fuel pump; yours may be starting to fail. Have it tested.
Your 92 Chevy lumina car cuts off whenever you come to a stop starts right up but cuts off the next time you come to a stop?
Turn your headlamp switch counter-clockwise from off until it clicks, then comes back to off position. This turns the DRL on and off. Remember, you won't see them come on unless the car is in gear. You can check this at a stop light with the reflection from the back of the car stopped in front of you.