P0406 Exhaust Gas Recirculation Sensor A Circuit High Dodge

R Generally speaking, a 2004 Dodge Ram 1500 fuse box diagram can be found inside the fusebox. keeps it in place when for a serious upgrade. Ford EGR systems are designed to reduce smog-causing nitrous oxides (NOx) by recirculating a portion of the exhaust gases from each cylinder of the engine back into the intake manifold. Looks like the EGR valve got stuck. I don't know what else to do. possibly it needed to be cleaned or replaced, but he couldnt say for sure (this was at. OBD Code P0406 - Exhaust Gas Recirculation Sensor A Circuit High <