HRDEDD 
2000 Nissan Sentra Sedan SE 4dr Sedan
Lemon
 I bought this car used and had a great time for maybe the first year.  My check engine light has been on for years.  It says my catalytic converter needs to be replaced.  I paid for an expensive fix getting a new catalytic converter and the check engine light is still on and still reading the same thing.  My uncle didn't even believe it was my catalytic converter because there was not burning hot air coming out of my muffler.  The car seems to run fine with the check engine light always on so after many trips to various auto repair shops I have basically given up and just drive it as is.  The car is small which was great for me back in college but having a family in the car is hard.