P0404 OBD-II Code: Exhaust Gas Recirculation Problems

P0404 OBD-II Code: Exhaust Gas Recirculation Problems p0404 Some vehicles may store EGR control performance code P0404 This occurs when the difference between commanded and actual EGR valve position is more than 10% p0404 Check engine light code P0404 means Exhaust Gas Recirculation Circuit RangePerformance Find out how to fix it in this article!

p0404 P0404 = Exhaust Gas Recirculation Open Position Performance Sets when the difference between the desired EGR position and the actual EGR

p0404 Hi guys, I had my engine management light come on yesterday and after reading the trouble code p0404 and looking on the net as to what it Mazda6 - P0404 keeps returning even with new EGR - Had a P0404 fault code