Iv got a 09 ss/tc cobalt I bought it with after market intercooler an exhaust, iv owned a year an a half but the past few months my boost has dissapered. It will sometimes hit 15 pounds like it should but for the most part its sticks at 6 pounds an I don't have much power and sometimes it don't even spool at all, any suggestions or ideas what this might would be would be a huge help, iv also had the turbo replaced 10,000 miles ago

 

Have you done a boost leak test? Any codes?

 

Iv not done a boost leak test but it has always had a code for vacuum leak the code is p2261 but its always had that code even when i t was running right

 

sooooo....... you keep having a vacuum leak code but you havent thought to address that? what your feeling is limp mode. you have a leak of some sort. do a boost leak test and you will more then likely find your issue.

 

Wrong section. This is the LSJ. You need to post in thr LNF section.

 

Thread moved

 

Isnt this usually caused by the intercooler?

 

You need to check for a boost leak. You probably had a coupler come lose, or you have a hole in your IC or charge pipes.