Start the car and it iddles fast and than slow as it does this it smokes out of the tail pipe and than dies.

This could be anything from a Vacuum Leak, Idle Control Motor failure, Throttle Position Sensor failure, O2 sensor failure, Fuel Pump failure, Fuel Pressure Regulator failure, Fuel Injector failure, Bad Catalytic Converter, etc. What color is the smoke coming out of the tail pipe? If it is white, it could be a cracked head or blown gasket.

Here are some common solutions to your symptoms:

1. Inspect air filter
2. Inspect EGR system
3. Inspect electrical wiring and computer systems
4. Inspect fuel injection system
5. Inspect idle speed control system
6. Inspect ignition system
7. Inspect MAF sensor
8. Inspect MAP sensor
9. Inspect O2 sensor
10. Inspect PCV system
11. Inspect throttle body
12. Inspect throttle position sensor
13. Check for vacuum leaks
14. Inspect exhaust system

You have water in gas your going to have to drop gas tank and clean or you can try gas cleaner maybe that will fix the problem.