X13mgr Posted January 14, 2016 Share Posted January 14, 2016 Hi guys please bare with me. This is hard to explain. Basically car runs sweets up to second turbo kicking in. It all kicks in sound massive Rush up to 1bar. But after that the exhaust note totally changes there is no whistle of turbos spinning up. Turn the car of and its all back to normal sounding jus as it shud. But then same if u kick the second in again. It's bin garaged a while now. Had a look this afternoon and ive noticed the EGCV opens after 4500rpm but doesn't close until u turn engine off. Soon as u do it closes. Any help or insight into what it could be would be a massive help and anymore info u may need. Thanks in advance Ben. Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted January 14, 2016 Share Posted January 14, 2016 There is a VSV that controls the EGCV, is that functioning normally? Vacuum hose leaks are a common issue on the twins, I replaced almost every single hose before getting my car right.. Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted January 14, 2016 Share Posted January 14, 2016 http://www.mkivsupra.net/vbb/showthread.php?35926-The-sequential-system This thread is very helpful.. Quote Link to comment Share on other sites More sharing options...
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