Is this the cause of why my car AC doesn't work?

dre 2001

New member
I drive a 2001 lincoln Continental and my check engine light came on. I got the code P0442 I went to auto zone and the told me the code is Evaporative emission system. Leak/no air flow condition. this could come from a loose fuel cap. thats false because replaced the fuel cap. it also said the code could come from a vacuum leak at the engine. I was wondering could this cause my car AC not to work because it seem to just blow out hot air?
 
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