A couple weeks ago, my car had a bad flooded engine. When I finally got the engine to fire I heard a loud pop and I saw a chuck of the catacomb from my catalytic converter fly out of my exhaust. I notice that I'm getting a strong gas smell and a little bit of white smoke from my exhaust. Do I need a new catalytic converter or is this sign of engine trouble?

 

Unless you don't have mufflers then what you saw probably wasn't a piece of the catalyst.

 

I have not idea what it could have been. I looks just like a piece of the catalyst.

 

There aren't too many things that looks like the cat honeycomb. I would say it's probable cause to take it down to examine.

 

The catalytic converter can break apart but will usually not shatter and fly down the exhaust.Must have been a small piece to make it though the muffler. Do you have any pics of it?

If it was in fact part of the converter, then yes you absolutely do need to replace it.