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Join Date: Dec 2008
Location: new jersey
Posts: 27
Porsche Crest Vacuum problem 1982 928

Right by the throttle body there is a vacuum diaphragm that is missing a connection on my 928. The diaphragm has two short hoses that feed directly into the throttle body one before the butterfly and one after.. What is this item called so i can look it up on the vacuum hose diagram and hook it up correctly. Thank in advance...

Old 12-04-2008, 09:16 PM
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Its the vacuum limiter and the vacuum line should go to the main manifold vacuum connection the same as the fuel pressure regulators.

928-110-173-01

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Old 12-04-2008, 09:31 PM
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Good post pic Mike. This should get me in the correct direction when I install my Vacuum Limiter back up. It was missing on my "S."

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Old 01-18-2011, 01:15 PM
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