OBD-II P0404 Light help - LS1TECH

p0404  I had the code read and it was P0404 and the recommendation is to clean the exhaust gas recirculation valve and all egr ports  Code P0404 usually indicates that there is a carbon build-up somewhere in the lines, or on other occasions, a bad EGR valve

Check engine light code P0404 means Exhaust Gas Recirculation Circuit RangePerformance Find out how to fix it in this article! The P0404 fault code indicates an issue with the Exhaust Gas Recirculation system This

Saturn s-series P0404 trouble code EGR cleaning Disclaimer: This video is not meant to be a P0404 is a generic OBD II fault code that indicates that there is an issue with the Exhaust Gas Recirculation circuit The Engine Control