P0404 code?

What is the P0404 Error Code? The P0404 error code is a specific diagnostic trouble code that signifies a problem with the EGR system's

The error code P0404 can be defined as Exhaust Gas Recirculation Circuit RangePerformance Featured Products

p0404 P0404 EGR Valve malfunction #P0404 #EGR_Valve #Fix

p0404 Mazda6 - P0404 keeps returning even with new EGR - Had a P0404 fault code