Misfire/MAF/WHAT!!??

I have been reading posts in this forum for weeeeeekkksss, but I could have missed something, so please forgive me if this has been posted or asked ad nauseum. I admit I am a mechanically inclined female, but give me something from pre 90s to work on, I am fine. I now think I could almost work for Toyota. LOL

I had written my whole post and lost it, so instead of redoing the entire thing, I am just going to say it has fresh oil and filter, air filter, olugs, coil packs, injectors, cleaned MAF and throttle body, nothing has stopped this car from doing what you will hear in my video. Head gasket is fine, codes now thrown are 112 and 301 which indicate MAF sensor, which I have on order, but wanted to post here while I wait for it to get here. Codes it was theowing before all the new parts above were all misfire codes, bank 1, 2, and random, among others, but as I say I have gotten it down to these two codes, but they were not originally even showing. So is replacing the MAF sensor (which I got super clean by the way, along with throttle body which had soot buildup) just going to further disappoint me? After each step, I stopped, put all nack together, yet no change in how it runs. Only in the codes being thrown. It was overfilled with oil (2 gallons. And not by me, no) but was run very very little with that issue, so I really doubt it had time to ruin gaskets and seals and/or valves or cylinders. But I am just at a loss and honestly, my luck with this car has been such that I am not getting my expectations high about the MAF fixing it at this point.

Anyone wanna offer anything else I can be doing or checking while waiting on the new sensor? I have gone through this thing with a fine tooth comb iver the last 3 weeks it has been sitting in my garage and I am just about at the end of my rope. I just truly feel it is something simple yet that I may be overlooking.

Any thoughts?

This is my son's car,singlas a single mom, well, some know how that goes. Anyway, this is a 2006 gen 2, 178k miles, new hybrids, new 12 volt, and just in past two weeks new plugs, new coil packs, new injectors, fresh oil and filter, air filter, and cleaned throttle body and MAF sensor while I was at it. However, this thing is shake, rattling, and rolling still constantly like crazy. Will stay running most time but sometimes will stall out and I don't even try to put it in gear anymore cause why bother when it sounds and feels like it is about to do a come apart. Now, I will say that it was overfilled with oil (2 gallons to be exact) but that was done AFTER it had already started acting loke this less than 2 miles from home and we limped it home. And with the overfull oil, it had probably only been ran the equivalent of 20 minutes and that was just on and off. Codes started off as misfire 1 and 3 and random, so those led to changing out everything I mentioned. No changes. Now those codes have been cleared and it is still same noise, same knocking (btw head gasket and coolant system is fine) just awful but now the only codes being thrown are 112 and 301 pointing to the MAF. I have a new MAF ordered and it is going to take a couple days, so I thought while waiting, I would sign up here, post the issue and with all the info I have given, just see what the experts in here think. I am going to do a short video clip also and hope I can attach it.

 

Dang, now I see that my original post didnt disappear after all, it was just way down the page. Sorry about that.

Anyway, I wanted to add something that I just noticed while I was making that video that makes me think I better add PCV valve to the list of parts. I went back to unhook the 12 volt again so I could tear back into it and happened to look down at my garage floor and there was liquid under the exhaust, stuck my finger in it, oil, which makes is what makes me now add PCV valve to my list. And my guess is that I better pull the plugs again and make sure they have no refouled due to the small amount of idling that was done when there was too much oil in it. I just feel like I am stuck in a vicious circle at this point.