'04 Vic codes need advice

I'm needing advice/ direction. My Vic started violently lurching at stops on Friday. Actually felt as if someone was ramming with another car. No loss of power. Drove seemingly normal. But problem continued. Code reader initially picked up codes p2195 & p2197 saying sensor stuck lean and bank 1 sensor 1, bank 2 sensor 1. Today, i reran the code reader bec I had forgotten the codes and a new one came up, p0300 "random/multiple cylinder misfire detected". Any direction or advice as to what I'm looking at is greatly apreciated

If you do a search for this issue on crownvic.net there are a few things that come up but the most likely from your description is the MAF (Mass Airflow Sensor) this can greatly affect your fuel mixture.

Here is a link to a post on crownvic.net that covers how to test the MAF sensor.
http://www.crownvic.net/ubbthreads/ubbthreads.php?ubb=showflat&Number=2083673#Post2083673