I just bout a new/used s5 turbo wit mani and my room mate installed for me today. He said he was running great when he 1st started it up and took it for a run, but when he bought it back home n added some coolant, it won't hold idle anymore. We figure it was one of da vacuum holes but all da holes seem fine, now we're lost ... Anyone has an idea?? Anyone in nor cal can lend a hand, that be very great?

 

from your av it looks like you have a s4. did you or your roomate cap the vac line for the twin scroll?