Fuel Trim acting up 2005 5.7

[Bobby L]

I'm having issues with a very random P0300. When i start the truck it runs rough and this is what Bank 1 is doing below, huge neg spike on short term and bottoming out on long term? Does anyone have advice on what is possibly going on here? Fuel pressure is 60 and stays there for 5 mins when turned off. This is at idle and very low speed, new plugs and coils, 150K miles

 

[Bobby L]

no one on here monitors fuel trims???
well anyway, the update is the O2 V readings from B1S1 were all over the place, flat lining to zero or 30 % during normal driving, so I had a Mopar O2 sensor kicking around so i finally put it in. So far........ it hasn't acted up and thrown P0300 code. Too early to tell.