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From Porsche's OBD II manual"
"P0455: Fuel tank pressure below lower limit
Possbile cause: Loose, missing or defective gas cap
Vent lines disconnected from EVAP canister......."
I could go on, but I think you get the picture........................
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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