Vacume leak at ISV
12-17-2015, 08:37 PM
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Vacume leak at ISV
Is there any alternative to the factory ISV? I'm on my second one in less than 3,000 miles and it has become the source of a vacume leak, same as the last one. Both were new from porsche, seems to be a bad design, they definitely didn't leak when they were new. Could higher than stock boost pressure be causing failure? I'm running 15.5 psi.
