Could I have a bad catalytic converter even if I don't have a code

What is your question?

I had to feel pump replaced. The next day I was driving and it felt like a decrease in speed, but my foot pressure did not change on the pedal. When I went to get in my car later that day it would start but the moment I put it in gear it cut off. could this be because of replacing the fuel pump and maybe I just need to check spark plugs. As far as a bad catalytic converter the only thing that is missing is the rotten egg smell could this possibly be a bad converter

How long has your 2005 Dodge Ram 1500 had this problem?

2days