intermittent loss of cmp or ckp what do i need to do? on 2003 Dodge Stratus

i had it hooked up to a OBD2 reader and it gave me 1391 code but the autoparts store had no idea what it meant. the car is jerking and keeps stalling when warm.

Asked by for the 2003 Dodge Stratus
2 answers 4 comments
Need further testing performed code doesen't mean parts are at falt.
What other testing?I was told it needed a O2 sensor but nobody knows which one I guess there is 3 different ones in this car, then they changed t. Im so confused I dont know newer cars, im an older car gal lol
Who scanned your car? Have another scan test write down all codes and post
so we can help you. I am pretty much old school myself !!
Advanced auto scanned it and it came up with 1391 this time but I will try to get it read and get the codes on here so I can get your wisdom in helping me figure it out. Thank you.
seek daig and est from a MECH not auto zone