Just as title describes.   2020 had car for about a year, no issues. Got a CEL last month for P0496.  Had the Purge Valve replaced by my trusty shop.   2 weeks after that, now getting P04F0.
 
	 
 
	Is this common?  Any suggestions?
 
	 
 
	I have no issues or observations of any kind.  This new code did not pop on soon after filling up with Gas.  I did very that the fuel cap door is closing properly, even wiped it (this was on initial CEL for P0496, after resetting, initial CEL came back)