I read the thread on the check engine light, pulled the code and discovered that it was a code 67. I had installed an Invidia test pipe a week ago. I removed the test pipe and re-installed the stock cat, but I can't get the light to reset. My car is only 2.5 weeks old, so the cat should still be good. Can I just disconnect the battery to reset the ECU?

 

Yes

 

It's disconnected now. I'll let you know if it works when I hook it back up. Thanks!