P0404 code

Code P0404: Check Engine Light Is On My Garmin code p0404 The glow plug light flashes all the time after around 3 mins after you start the van I took it to a garage and they read the fault code which was P0404 EGR code p404 i replaced egr at first it worked fine for a while until car started giving the code p0404 again and the engine went into safe mode Tester

code 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