Limp Mode after dead battery

[v10CodeMonkey]

Needing some help diagnosing a limp mode issue on my '08. About a month ago, group of us Vipers here drove the cars to an oval track (about a 45 minute drive) for a few laps. When I got there I went inside for a 20 minute driver's meeting and came out to a completely dead battery. Had to get it jumped from both a jump pack and another car to get it going. Check engine light was on at this point. By this time I had missed my track time, so headed for home but had to stop along the way at a gas station so one of the other Vipers could fill up. I left mine running bc I didn't know if I could get it started again. Idled for maybe 5-6 minutes. Got in to go and almost immediately went into limp mode. Normally I would shut it off and let it sit for a bit and then restart to see if limp mode clears, but bc of the weak battery I decided to just limp it home. Got home, bought and installed a new battery and it fired right up, no more limp mode. I did notice that the positive terminal of the battery cable was very corroded and eaten away. I wanted to see if the new battery solved the issue so I just used the corroded terminal again, with the plan to replace in the future.

Over the course of the next month I drove the car 4 or 5 times and noticed some (very) slight surging in the lower RPMs when accelerating. Chalked it up to the PCM relearning/adapting after having driven in limp mode for several miles. It smoothed out a little as I drove it.

This past week, got the car out again and drove for about 20 minutes and it ran great, then sat in parking lot for 10 minutes idling before heading for home and again, it went into limp mode. Limped it home, let it sit for a while then fired it up and limp mode gone. Next day I replaced the corroded battery terminal and have run the car a couple times since then without issue. Today, I drove about 10 minutes, then stopped and let it idle in driveway about 6 minutes. Started to pull it back into garage and it went into limp mode again. So letting it idle for some time seems to be a trigger.

Below are the codes it threw this last time, I know many are due to the limp mode itself. Any ideas why it going into limp mode? This all started after the dead battery, never had issues before that. Seems to pop up after idling for a while.

My car mods - Arrow controller (installed in 2016), ACR-X Headers (installed 2014), Gen V intake manifold (installed this past spring).

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