P0430 Service Engine Soon Code

[97vulcan]

I went to autozone and had them scan my PCM because I had a SES come on this past Saturday. Come to find out its code P0430 Catalyst efficiency low-bank 2. What does this mean for my car? What can I do to fix whatever the problem is?

Thanks,
Adam

 

[projectSHO89]

This code, along with P0420, is one of the most commonly asked about fault codes on this forum.

Click on SEARCH and enter the fault code to review a multitude of previous discussions.

Steve