P0404 Code

code p0404 and check light flashing p0404 It shows P0404 which I see is a EGR Valve I was looking around alittle and see this might be covered under some federal emission warranty p0404 Code P0404 is to some extent simply generic and there may be various causes for its activation Sometimes a poor or corroded electrical connector can affect

p0404 Mazda6 - P0404 keeps returning even with new EGR - Had a P0404 fault code