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Jerz Jerz is offline
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Join Date: Oct 2008
Location: AB, CANADA
Posts: 126
Garage
It's possible then back pressure in the exhaust overpowers the spring even with boost controller running 100% duty cycle and venting all the boost pressure signal. That is possible with small turbo hot side and weak WG spring. I assume you have a "pill" restrictor in your line?
If that is the case, conecting the controller signal to the vent side of the waste gate should cure it (with reprograming your ECM).
Old 09-07-2010, 10:21 AM
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