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Changed oil+filter yesterday(3C3Z-6731-AA,rotella T 15-40),fired up and leak checked,all good.Decided to pull EGR and clean.Nicked one of O-rings and had to go ford today to get O kit.Reinstalled EGR had check engine lite appear.Livewire showed P-0403,405 code?Truck ran ok,but not as smooth.Cleared codes and all seems to be good so far.Only thing i did was turn KO to roll windows up with EGR disconnected.Do i have more issues?(2007-6.0-46K)
 

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P0405 indicates the coil in the EGR valve is bad. Replace it (or delete it).
 
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