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A-Aron replied to cartel's topic in 997-1 Series (Carrera, Carrera 4, Carrera 2S, Carrera 4S)I had the same problem only mine was tripping all the cylinder misfire codes (P0300 - P0306) and it ended up being a vacuum hose leak. There was a very small hairline crack in a rubber vacuum line were a metal hose is inserted into it. I tightly wrapped it several times with Gorilla Tape and it hasn't tripped the codes since. If it happens again I'll go ahead and replace the hose but I thought I would give it a go with the tape and it worked.