Hi new to the forum....
I have 99 s80 t6 and i have a code p0455
I was told to replace the fuel cap at the dealer but did not solve the issue... Its not running rough or anything wrong while driving but the code will come up randomly...
Just replaced both the inlet&outlet heater hose and coolant recovery tank and the recovery tank lower hose due to leaks... Would that fix the issue or is there other things that must be done?

Thanks

 

Hi, that is a code that deals with the evaporation system. Are you putting the cap on real tight when you put the cap on after gasing up?

 

Yup...