I have a 2001 grand prix GT that was having acceleration issue and I determined that it was a catalytic converter issue. The service engine soon light never came on. I just had a magnaflow direct fit, catalytic converter installed and the problem was fixed. The next day the service engine soon light came on. I haven't had the codes read yet but I was wondering if anyone else has had a similar issue with this after installing this or any other brand of converter. I am going tomorrow to have the codes read but wanted to know if this is caused by installing the new converter. Can I clear the codes and not worry about it? Any insight would be much appreciated.