Anybody have any idea wtf this might be?

GunWorxx

So I bought a 2010 370z nismo from a dealership (Not a Nissan dealership) Around 28 or 29 days ago. When I test drove it, it drove like a dream. Everything all perfect. So I am signing the paperwork and handing them tens of thousands of my hard earned dollars, and they bring me to my new car. It has just been filled with fuel.

A week later I get out and start it up. Immediately i know something isnt right. I wait for it to warm up every single time after starting it before driving off. The "Service engine soon" light is on and it idles at about 1100-1200 RPM. With aftermarket exhaust, this is extremely annoying. First thing I did was take it to auto zone, because that is .5 miles away and they have a scan tool. The guy told me misfire in cylinder #5.

I immediately take it to the dealership I bought it at because I paid for a warranty. After two or three hours of standing around they come out and ask me if I ever put "Bad gas" in it. I say no...i only put 92 octane in it. Which is what it takes. Premium. So they end up just clearing the code and its back to normal but i had to go pay for my own octane booster out of pocket.

Another week later after I get back from a short vacation at a lake, I get in it. Fire it up, and it's doing the **** again!!! I took it back to the dealership and was pissed this time. They ended up giving me a loaner car and held the car over night. They called me that night saying "when you bought the car we changed the oil, but apparently the car needs specific oil from nissan, and the cylinder misfire thing is from cold start". This car has never been started when it's cold. It's not even close to cold outside right now.

So I drove from portland, OR to Long Beach, WA. No problem, the very next day. It's doing this **** AGAIN. I'm taking it to the dealership tomorrow yet AGAIN. I don't know what to do anymore. The car is paid off, but it's jacked up and nobody can figure out why. So maybe this is a long shot, but here is a picture of how high it idles and the light, and if you read my story..give me your opinion please.

Btw I haven't been driving it hard at all. Just normal everyday operation.