SLK280 (R171) P0496 EVAP System High Purge Flow
my check engine light went off, drove to autozone and got the code above.
It happened short after filling the tank to the full.
I removed the fuel cap it looked dirty, i cleaned it just now so i hope the light will go away in a few.
but what if it doesn't? what are the possible solutions to this code? i read there can be a lot of parts but i wouldn't want to try one by one if there's a most likely to less likely (and easiest to hardest) list to try.
thanks


