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Discussion Starter · #1 ·
I have a 2011 V70 1.6 D with 163 000 km on the clock, and I this problem has been bugging me.
Sometimes I can feel a noticeable reduction in power for a brief second and then the power is back. I think this is due to a sudden loss in turbo boost pressure as this is usually followed by a noticeable "Shoosh" sound from the VNT. I have checked the ECU using a DICE clone and there are no fault codes attributed to this problem. I have taken a quick look at the turbo and it seems fine, although there is a little radial or sideways play in the turbine, but I wouldn’t say its excessive. I am starting to suspect that the TCV is faulty, but I would love to hear your thoughts as well as any tests or diagnostics I can do. BTW I have a DICE clone and VIDA if that helps.
 
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