P0404 – Meaning, Causes, Symptoms, & Fixes

P0404 Exhaust Gas Recirculation Circuit RangePerformance EGR Valve

A P0404 code often indicates a potential problem with your car's exhaust gas recirculation system

p0404 Code P0404 usually indicates that there is a carbon build-up somewhere in the lines, or on other occasions, a bad EGR valve

p0404 Code P0404 means that the EGR Valve Position Sensor is reading above or below the specified range Need help with diagnosing your trouble