I have a 1998 Lexus es300 and my engine light is on, I had t

I have a 1998 Lexus es300 and my engine light is on, I had the Calla converter changed and it came back on .?
can eny one tell if there's somthing else that I should check. when I drive the car it sound as if it wants to stop.

Have you had the dealer check it out.

The engine warning light means that the car's computer knows of a problem. there's a code that can now be pulled that identifies what the computer is seeing. Code machines are about $100 or less from auto supply shops.