Ok this might not make sense. my v70r is running 24psi boost At the turbo but the car isn't boosting as it should, according to IPD the stock TCV can only handle 16-18 psi, is this true. I have no fault codes at all and car idles fine. Even the guy at the diagnostic place is puzzled by this. Any ideas folks sorry that this topic is continuing for so long, I have thrown money and time at this with no joy in a soulotion.