P0441 cayenne v6 3.2

[Oussmano]

I have a porsche cayenne 2006 v6 3.2 

i have a code p0441 whenever i fill up gas i wont start only after few times and now i have few codes for missfiring cylindres can you please help me 

and i wanna know if its the p0441 is the one which caused the next few codes of missfires 

thank u

[angusc]

I have a porsche cayenne 2006 v6 3.2 
i have a code p0441 whenever i fill up gas i wont start only after few times and now i have few codes for missfiring cylindres can you please help me 
and i wanna know if its the p0441 is the one which caused the next few codes of missfires 
thank u

According to this app https://play.google.com/store/apps/details?id=com.trentapps.cel that code is:

Porsche P0441
Evaporative Emission Control System Incorrect Purge flow

I seem to remember that there is a breather filter system on top of the fuel tank that you can access from under the rear seats. If the purging system is blocked maybe this make the car run rich and that might cause your misfire codes......?

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[wizard]

Replacing the evap purge valve will in all likelihood resolve the issue.