Monitor your live readings of the MAP sensor and the engine temperature sensor; They are used by the PCM to adjust fuel trim.They might be going bad. Also check the vapor purge valve that it maintains a vacuum. Could be that is a problem source.
I know you changed fuel pump and filter, but some of the auto part stores sell incorrect filters. The Crossfire has a pressure regulator in the filter so be certain you have a correct filter and pump. Otherwise most roads lead back to oxygen sensors or a corroded, bad connection somewhere.