I tested mine last weekend, and when subjecting both to vacuum, one leaked down extremely slowly, and the other almost imperceptibly, so I think I'm probably ok. As long as the vac pump can overcome whatever leakdown the solenoids have and the wastegates hold vac, there shouldn't be a problem... I guess the next step would have been to apply vacuum to the lines running to the wastegates, but I lazed out. Maybe next time...
ianc
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