P0404 Code: EGR Circuit Issue

code p0404  The engine code is P0404 which refers to the EGR valve I replaced the valve with all new gaskets as it was rusty and the vehicle is at 194K 2 years ago, a a month after I bought my i30 , I had a CEL with a P0404 code that was set while on a long road trip in

P0404 Exhaust Gas Recirculation Circuit RangePerformance EGR Valve The P0404 code indicates a potential issue with the EGR system in your vehicle Causes of a P0404 code include a dirty or malfunctioning EGR

This code points to either carbon buildup or a bad EGR valve However that doesn't rule out the following: Open or short in the 5 Volt reference circuit  This code points to either carbon buildup or a bad EGR valve However that doesn't rule out the following: Open or short in the 5 Volt reference circuit