Service Engine Light came on. Got OBD code P0401 (EGR flow insufficient). Had EGR valve replaced, everything else seemed OK. Same code has appeared 3 different times, but only in following circumstances: going down 2 mile steep hill, 3rd gear, speed about 35 mph, not using gas petal, occasional brake use. Otherwise light never comes on. Any suggestions other than a possible defective replacement EGR valve?
Oct 15, 2009 at 1:54 PM
