New to the site here. Just got a 2006 Cobalt SS/SC for our son as a project. Fun car to drive and it is his first stickshift. It has 172K on it and had been sitting for about 6 months. We got it cleaned up pretty good and finally got it so it is not throwing codes. So far we have replaced the throttle body, evap purge solenoid, boost valve, rear O2 sensor and MAF. Been doing our research on this site went ahead and signed up. I have found a lot of good useful information so far.

 

Welcome and post up some pictures. Let us know if you have any further issues and we can try to help.