Quote:
Originally Posted by Starter986
Yes. I have the Tiptronic. But, vacuum?
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sure, why not. where does it go? if you follow it, it is connected to ... the vacuum system. really, although it is a big tube (it gets small at the other end, however) there couldn’t be any airflow in it as it is after the maf, so that air has been metered. tiptronic needs more vacuum than a manual car for all the geewhizzery on it, so porsche added an additional vacuum source. the air rushing down the main tube creates a bit of a venturi effect on as it passes over the opening of your mystery tube, and creates some more vacuum.
Hybrid Mode
