OBD-II P0404 Light help - LS1TECH

Explanation of what a P0404 Exhaust Gas Recirculation Circuit Range Performance engine

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

code 369 club Comprendre le code P0404 L'unité de commande du moteur déclenche le code P0404 pour signaler un dysfonctionnement de la valve EGR, qui ne

code p0404 P0404 Code: Symptoms, Causes, and Solution