Hello, last week I replaced the spark plugs in my base model in an attempt to fix a miss fire (I found out that this car had the original plugs after over 200k). I thought my engine would perform better with new plugs, and there is some improvement, but it idles really weird, at least I think. It idles on the lower 1000 rpm, closer to 0. There's been a few times as well, when I'm letting the car run, waiting for someone of just sitting in a parking lot, that it'll just shut off. It has thrown a few codes (p0123, p0410 and, p0400) but from the research I've done I don't think those would cause it to stall out, maybe the rough idle. Idk, what do you guys think?