P0404 - Seat Arosa

Some vehicles may store EGR control performance code P0404 This occurs when the difference between commanded and actual EGR valve position is more than 10%

P0404 -EGR POSITION SENSOR RATIONALITY This is a rationality conflict with pintel position, the PCM does not like the info it is getting

code p0404 Code P0404 refers to Exhaust gas recirculation system --range performance problem--- causes---hose leakage--wiring---EGR valvesolenoid

code promo mycasino Part of that code refers to the EGR control solenoid Did you replace just the EGR valve or the EGR valve and the solenoid? Follow the vacuum