car dies while on the road only on warmer days. will start back up after a few minutes. code read out that cataletick converter is not right but no outher signs of it being pluged.no outher codes come up.

 

Can you get the car to stall out by shaking the key while the car is running?

Are the maintenance items up to date like the spark plugs, distributor cap, and the rotor?

 

Ask the dealer to run a VIN status on the car, see if the ignition switch recall has been done.
That doesn't rule out an igntion switch problem however; the original units were replaced with the exact same switch assy.