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Old 08-21-2017, 05:05 AM   #6
jcslocum
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Join Date: Aug 2015
Location: Eastern Shore, MD
Posts: 623
This seems like a vacuum leak to me. I know you had it tested but you must check everything, and I mean everything... even the brake booster. I know I now sound like a broken record, but this was our 2 year issue with mixture issues.

Make sure you 100% have the proper MAF, these are at least 2 for the 2000MY and they are NOT compatible without an ECU flash.
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Jon
1966 912, 1976 911
1986 944, 2000 Boxster
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