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Showing results for tags 'cayenne p2401'.
Hello everyone, This is my first post but I have done tons of forum searching and found similar posts but nothing with my same codes. I have noticed a rough idle but once I drive the car drives great and boosts great. Along with the 2 EVAP codes I have P0300, P0301, P0304 and P0308. I have changed the spark plugs and I did a full inspection of the coil packs. The coil packs looked perfect, no cracks or damage and it needed new plugs so I did Beru plugs. In that process I changed the torque arm also because the rubber was shot. That didn't solve the misfire and I didnt notice any wiring issues or connector issues. Onto the EVAP stuff. I have the two codes P2401 & P0448. Just put a new gas cap on and cleared the codes, they come right back. I also checked the oil fill cap and its seal looks great (no cracks in the oring). Does anyone have any idea or run into these same symptoms? I have an appointment at my local Indy shop in a few days but would like to go in prepared. They're going to start with a smoke test looking for a vacuum leak. Thanks in advance, Evan