P1404 code dodge 2007 ram

Answer 1

P1404 code is for the EGR valve closed position fault. Usually what happens is carbon builds up inside the valve and hold the valve open slightly. General Motors has come up with a reflash of there computers to fix this problem which there software allow the valve to snap close several times before closing permanantly, this breaks off any residue on the valve pintle. It is possible that Dodge has come up with the same idea to fix there problem. If not the valve will have to be removed and cleaned. There also is a fix if you have a scan tool that might work which is to remove the connector to the valve, with key on clear the codes and as soon as codes cleared is posted turn the key off before it can reset. Re- connect the valve and start the car, this forces the computer to assign a new closed valve voltage.