Intermittent rough engine and misfires both in idle and while driving, codes P0305 and P0300

I am so sorry, that was a typo. It is jumping between 55-65.

I think I got the video to upload this time.

I do have one. Been trying to keep and eye on it without crashing, lol. I took a peak at it when it was doing some sputtering at idle the other day. I’ll post the picture.

It doesn’t always stay that way, noticed that it will come back around normal range while driving but still goes up and down. Mostly in the positive side as the pic suggests.

Also the vehicle was driven pretty heavy today. Started off running almost perfect (didn’t run A/C) The more start and stopping I did it would have little sputters when restating big would go away pretty quick. Ended up having to hook up a trailer to it to pick up and drop off a dryer and had the A/C running as well (hot day) The sputtering and hesitations kept getting worse the longer we drove. When restarting and heading back it got rough enough for the CEL to start blinking for a couple seconds and then stopped. Turned off the A/C and drove it back. Had some hesitations and stutters but made it. When parking it stalled on me. Let it cool down for a couple hours and when heading back home (no ac and no trailer) barley had any issues. A Few stutters at the beginning and slower on acceleration but got better as I went. Checked the codes and had p0305, p0300 and now also p0304. Checked the misfire counts on the scanner and had misfires in all the cylinders, at least half were in the teens.
Sorry for the long post but trying to be as specific as possible. Going to go ahead and order the fuel pump while I wait for your reply. Thank you so much for the help.

Well, I ordered a fuel pump. What should I be looking for as far as the sensors or injectors go while waiting for it to come in? I can see the sensors oscillating on my scanner while running.

Drove the vehicle today. I’ll post a pic of the fuel trims at startup. While driving I noticed they would go up and down both short term and long term. The long terms would briefly get to mid to upper terms positive then come back down pretty quickly. Seemed to go higher when coming off the gas or braking and also seemed like they were higher when feeling some sputtering.

Okay, so first Happy 4th!

Got the fuel pump swapped last night. It was running pretty rough before the change and after it started up and idled smooth. Felt good driving, no hiccups and acceleration seemed better. Didn’t run the AC at first but did when got closer to home. Didn’t seem to have any issues though it was in the mid 70's out.

Got home, stopped and restarted. I let it idle for at least 20 minutes. It did good at first then would start getting smaller sputters but not as bad as before and not as frequent. I’ll see how it does when it’s hotter out.

I plugged my scanner in to look at fuel trims at idle. I’ll post the pics but my long terms were +13.3 and +9.4 and stayed at those numbers pretty much the whole time. I would give it gas and they would move a little and immediately go back to those numbers.

I also went in the test part of the scanner to see misfire counts and went in the O2 heater monitor test. This is after it was idling for a bit. B1S1 was at 77 F which was outside temp. B1S2 was 95F. B2S1 was 113F and B2S2 was 59F. Not sure if that’s even important but found it strange the temps would be so different. The live data always shows both my Cat converters at the same temperature.

I also noticed that my thermometer in the car was reading 76F but my ambient temperature sensor on the scanner was reading 115F. Are these supposed the same?

The short term at that time were -7.0 on B1 and -5.5 on B2. They would fluctuate as I gave gas in idle and the long term numbers would drop as well but immediately go back to the same numbers as before when letting off the gas. I do not believe my scanner has the ability to reset adaptive numerator. Not sure what it is honestly. How can that be done?

I’ll keep you posted. Thank you for your help.

Okay, so drove it around today. Really hot day so running A/C. At first no issues at all start and stopped about 3 times. Soon as I got it on the highway you can feel a few stumbles. After about 10 miles and getting back into stop and go and then parking and keeping it running I am getting the sputtering again. Not as bad as before and seems to kind of go away when I turn off the A/C. Ran the scanner and have pending p0305 and p0300 again. Not sure where to go next.

Just got back, had quite a few big stumbles and had my scanner running, the short term trims on both banks would jump up to +20’s and +30’s while it’s happening. They are also jumping up almost as high while it’s sputtering in idle. I did notice the long term was moving up and down like a short term trims while giving it gas or driving. Thought the long terms are supposed to be slow moving. CEL is back on for p0300.

Compression test has been done. Right around 150 psi all around.