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

Would that explain the smoke? If I got a PCM from junkyard it would need to be programmed right?

I have smelt a burning rubber type smell before, but that was before I did the alternator.
Just to clarify, are you saying that if a chip was burnt up that the Jeep wouldn’t run at all?

Okay. Have not had a chance to get the EGR yet, it’s in a crappy spot to get to and recruiting help. I did want to give and update as well, here the last couple of days it has started to stall on me a lot more. It has stalled in the past but rarely. It’s stalled on me several times last couple of days. Mainly while backing out of a spot, idling and it stalled on me at a stop light as well.
Also it’s looking more like the issues is mainly happening after start up. Last couple of trips (not as hot weather) it’s been fine most of the way to fist destination, especially when first getting going from overnight before engine reaches temp. Seems like the issue is happening mostly after coming to a stop and restarting within an hour or so or been running for a while and run into start and stop situations.
Last night after letting it sit for a few hours it was running great, ran into construction and had a big detour and lots of stopping and starting. It did fine for a while but after several stops the stutters started again and getting back on the highway was rough at first. Had to pull over cause the CEL was flashing. Stopped and restarted but it stalled on me before I could get going. After getting it going it seemed to get better as long as I didn’t push it too hard and got back home and it had stopped.
Similar today, made a quick trip, restarted after 15 minutes and it stalled on me 2 times backing out and once when putting it in drive. Had some hesitations to get going then it got better. Stalled on me at a light a little later.
Had some skips on the highway but not too bad again as long as I didn’t push too hard. After letting it sit for a few hours and driving back didn’t have any issues.
I also had code p1128 come up today as well. Closed loop fueling not achieved bank 1 upstream
Does this fit with an EGR issue?
Thanks in advance and sorry for the long post.

And almost forgot.
I will post the pic, while I was under the hood, I wiggled and pushed on what I think is the PCV while it was stuttering and it seemed to make it stop. Not sure if a coincidence but seemed to happen 3-4 times.

Hey,

So from what I’ve pulled up in forums and online that is the crankcase vent to intake manifold tube. That rubber plug at the end is attached to the PCV valve. (It’s not on the oil filler tube on this model) That tube would be a vacuum line right?
Did you see my previous post about it stalling more and the p1128 code? I know it’s a long post, just trying to get you as much details as possible.

It’s the first time seeing the code, it was pending. From what I’m seeing o2 sensors or the sensor heaters seem to be most frequent reason for that. I do remember Kenny mentioning the o2 sensors as well. I do have the o2 heater sensor test on my scanner. I’ve looked at it before but not sure what exactly that test does. I do remember looking at the test after driving for a bit and it was showing -40 degree. I’ll attach the pic I took. I think I’ve mentioned it on this thread before but not sure.

I went ahead and looked at the O2 sensor heater test as soon as I stopped after a good 25 minute drive. All of my sensors up and down stream and both banks showed min and max of -40 degrees and a test value of -40 as well. I pulled up pictures from July 4th where each sensor was a min of -40 and a max of 536 and each sensor had a different temp. B2s1 was at 113 that day and B1S1 was at 77.
Not sure if this means anything at all but thought it would be worth mentioning just in case.

Sorry to keep posting but think this may be important.
Just drove back, not much drivability issues just a couple little bumps and sputters. Had live data on my scanner and made sure it went into closed loop. Got back and parked and looked at the scanner and fuel system one was in open loop-fault.
Decided to go ahead and check the same O2 sensor heater test and this time they were showing readings. Min -40 Max 536 with a temp of 113 for b1s1 and 122 for b2s2.
I didn’t have an engine light on but went ahead and ran a scan and I had p0131 pending. O2 circuit low voltage b1s1
Can the sensors be causing all these issues?

Is p0131 not an o2 code?

I’ll try and look in it ASAP. Honestly I’m a little nervous to mess with it.