Fault Code P0404 - EGR Valve -

Code P0404 is triggered when the EGR position is not as the ECM expected and the most common cause is the EGR valve partly stuck open from carbon buildup on the

Code P0404 usually indicates that there is a carbon build-up somewhere in the lines, or on other occasions, a bad EGR valve

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 Watched some YouTube videos about P0404 and I amwas about to performsee if cleaning, or replacing the EGR valve andor gasket would solve the issue