I was driving and then my truck started to sputter so I pulled over and it died then I noticed the check engine light came on it would start back up thougb it wanted to, 45 minutes later I came back and it fired right up so I took it to auto zone and got a diagnosis to find the p0430 code which mention catalytic converter failure I was in a rush to get it fixed since I use it for work so I just took off all of the catalytic converters well that worked well for about a day then it again died but would start up shortly after if I let it sit, I am not to car savvy if someone can give some insight to this that would be great

 

Btw it's a 2006 Ford ranger 6 cylinder 3.0