What is a P0404 Exhaust Gas Recirculation Circuit

Troubleshooting Ford Escape P0404 Error Code p0404 P0404 fault code This code refers to the EGR valve and its performance On the code reader it refers to 'A'control circuit Does anybody know p0404 P0404 is a EGR circuit code You most likely have an exhaust or intake leak which is why it's running rich Check the engine bay for soot or oil

p0404 code p0404 and check light flashing Flashing CEL is usually multiple cylinder misfire Sounds like your EGR might be causing a vacuum leak