What does error code p1404 for dodge ram 1500 mean?

Answer 1

EGR Valve is stuck in the closed position, usually due to exhaustcarbon dirt build up.

It can be cleaned out buta new replacement egr valve costonly$40.00 to $44.00 dollarsincludingthe two required reinstall gaskets, so you're better off doing it right the first time if you're going to do it yourself rather then risk having to do it twice wasting your time and $6.00 to $8.00 dollars for replacement gaskets to reinstall your old EGR valve not to forget the price of spray cleaner.