Have 2009 civic I have my emission test coming up one of my light says cat not ready I was told to drive it wich I did already put 250 miles on it but still says not cat ready can somebody tell me what to do thank you

 

Welcome to the forum. Find a way to reset the light off and drive it a bit to see if it returns. If it does more likely the cat is no good.

 

https://www.youtube.com/watch?v=BuZY...ature=youtu.be