I have a 1997 plymouth breeze that when i come to a stop the car?

could be a number of things. fuel, spark, running the ac? alot of times the compressor take a lot out of the motor causing it to run badly, also electronic fuel injection. is your battery old? computer, maybe just need s atune up. take it to a local parts shop such as autozone, your car is equipped with an OBDII computer system, most shops can plug their computer into it and scan it, and provide a list of problems with your car.