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Old 04-08-2018, 05:37 PM   #2
Anker
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Join Date: Sep 2016
Location: Stow, MA
Posts: 918
Garage
Blocked fuel vent valve on the active charcoal canister.

As you use fuel you generate a vacuum in the tank. Eventually it gets so high that your fuel pressure drops, the mixture leans out and the car loses power.
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2004 Boxster S Silver - FUNTOY
2002 Boxster Base Guardsy Red - FUNBOX
1987 Caterham Super 7 1700 Supersprint
2009 Mercedes Benz CLK 350 convertible
1941 Dodge Luxury Liner Coupe
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