04 RL 202k miles car starts and runs great, but put gas in car is hard to start and have to hold idle up for a minute or 2 then fine till putting gas in again. Also after being out of town for 6 days got home to every time I start the car ( battery was not dead) have to put in nav code and lost all use of ac controls thru nav screen but auto heat and ac work fine just put a new battery in last night nav system has to load ever time but nav and ac work now any ideas on both screwy things

 

intake manifold and egr ports need servicing also throttle body n idle air control motor