hey guys, my s5 TII has no boost. i replaced all vac lines and it drives and idles just fine. the only prob is i can hear the turbo but i can maybe pull .5 psi and thats it. even my bov goes off a little. all my coupler are tight and i checked for vac leaks and nothing. the wg arm moves back and forth fine. i am stumped. could my turbo or wg be shot?

 

btw, my car does not smoke at all. i know when a turbo seal goes out, your car will smoke....thanks

 

did you kink the boost gauge line? does the needle move freely?

 

well... maybe your turbo is dirty or something or maybe you have a stuck BOV or wastegate... my car audibly popped something at the last autocross event I went to and it wouldn't build decent boost, then I fixed some vac leaks but it still wouldn't boost right. I took it off the road for a little while to do exhaust and I cleaned out my turbo as best I could and ported the wastegate, so now with just a downpipe (for now) I'm boosting AWESOME and creeping up to about 7 psi. I may not creep much at all once I finish the exhaust.

 

the wastegate is ported...im leaning toward a stuck wg. how can i check this? all my lines are new and fine. no kinks and the bov barely goes off so it's not stuck. the wg arm moves fine but could it be stuck somewhere else?