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Registered
Join Date: Jun 2014
Location: Hilton Head Island, SC
Posts: 1,916
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Another thought I had about a rich condition: Porsche had a fairly regular problem with a bad diaphragm in the fuel pressure regulator (especially 944 and 924S) and unmetered fuel was being sucked in through there. If you pull the vacuum line off the regulator sometimes you would see or smell gas there. Given the intermittent condition not sure if that would apply...just a thought.
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