i cant find whats wrong, i checked all the hose and there are no leaks, check all plugs and they are all pluged it correctly. Is there any other ways to find what what is wrong? i checked the egr and there is no vacuum outta the hose, is there supose to be vacuum of that control?

 

well, there are a few things you can do...
a.) check to see if your gas cap seals completely, a slight leak can set a code.
b.) take out your canister, made sure there is no liquid fuel in it.
c.) do a smoke test, but you'll prob have to take it to a dealer for that...basically it hooks up to your fuel system and fills it with smoke, and where there is a leak the smoke will pour out.

 

p0441 EVAP Emission Control System Improper Purge Flow

Would it be really expsensive to get this fixed?