EGR Code

SwordMistress

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We are looking for a direction of what we should or need to do or check to try and fix the error codes that are being thrown at us. Ours is a 2008, the code only throws  after the engine is heated (so after we have been driving it out and about for a while). We do not notice any other symptoms along with it other than what I list.

It throws a P0404 code, when it does, it hits on the fans (they don't stop running), and will throw along with it the P0532, P1779 and C0561-71
We recently replaced the EGR valve thinking that to be the issue, but it clearly wasn't or we got a faulty product. Any insight would be greatly appreciated.
 
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