Well I was losing boost after 6k and had a boost leak I did fixed the leak and still lost boost after 6k. So I did the boost bypass mod and had boost all the way to redline at 7k.........bad bpv.......so I ordered a new one and while I was changin it out I pushed in the stick or watever its called and the spring sounded weird....tried it on the new one and same thing so idk (normal)??. Anyway after the install of the new bpv im still losing boost after 6k rpm and have bad idle sometimes when I come to a stop..... I did clean the entire intake and tb which helped big time but its still there...i. Think I hear air hissing but cant find where its coming from. Any help would be great as ive run out of ideas.

Anyone???

come on someone? any guesses....something?

 

Morning bump

 

Bump to find out wat it is... Before I head out to lsb 2010

 

Fixed the boost issue in 5 minutes. Note to all tuners; when you flash a Cobalt with a small pulley remember to max out the Desired Torque tables.