Need help - Car issues

2016

Hello,

So long story short it seems as if I bought a lemon. I got a used 2014 370z sports touring model with F.I. mods installed already. It has a Stillen SC, AEM water/meth kit, Stillen exhaust, and it appears to be Stillen sway bars. I'm in California and water/meth is for racing only so they emptied it before I drove it and gave no info on the car. The car drove fine for about two days and the problems starting piling up. I was driving home and I thought my SC just stopped working!! It felt as if the car had no power and the acceleration was real sluggish...so the SES light came on and we got a snap on scanner to see what codes came up. We got the MAF sensor P010B/P010A and a cylinder misfire. We cleaned them and cleaned the air filters, after that cleared the codes. The car ran soon for a day and ran into the same issues. Plus it was going into limp mode.. Loss of all power had to pull over stop the car and let it breath and then start her up. Main times I could tell it was an issues is when I would accelerate fast (speed limit of course) and went into limp. I thought it was over heating but my friend didn't think so.. Anyways, we hooked up the scanner again and got more codes. P1233, P1238, P0101, P010B... NOW I have to say I haven't been running the car with water/meth and I'm thinking that's the issue or it's the tune (I'm hoping to God it's nothing crazy)!! I also want to say this is my second car and I really glad to be apart of this community. I understand issues happen in the F.I. but for a 2014 I wasn't hoping to get something within the first 2 days.. Any information you can give me as a new 370z owner would be great and any information on the topic!!! Thank you so much!