Can't seem to get the Dealers to fix my NISMO

YinismoZ

Hello everyone, first let me introduce myself. My name is Austin. I am 21 years old. I recently just purchased my dream car, a 2010 magnetic black 370z NISMO. I bought the car at the beginning of December. Luckily I bought the extended warranty on the car. The car has died on me at least 3-4 times on me already. While driving the car it will begin to spit and sputter and have no throttle response. The car will slow down of course and come to a stop then die on me. After the car dies the car will refuse to crank. It will turn over, just wont crank.
I personally took the car to AutoZone and got the error code: P0171 stating that Cylinder number 1 denotes bank 1. Definition: Fuel system lean bank 1. Probable causes: Low fuel pressure, Blocked Injector(s), Large Vacuum Leak, or MAF sensor fault.

I had the car towed to my local dealer (Thornton Road Nissan) after the car died on me on the interstate with the check engine light stuck on. They called me and told me the battery was bad in my car and that it was causing all the issues I was experiencing. I laughed and told them I would find a battery myself if that was the case. I called Town Center Nissan (where I originally bought the car), and they laughed and stated the battery was not the cause at all. I went that morning and picked up my car. The head technician or whatever he was there told me that he would need to jump my car off. I waited inside as they went outside to "jump my car off." My girlfriend was sitting in the truck across from my car and saw them lift my hood, laugh and unhook my battery and hook the battery back up. They then got in my car and started it up and proceeded to rev it up as if my car was some carnival ride.

I took the car to town center nissan and they had no code to go off of. I showed the technician the receipt I got with the error code. He told me they needed to drive it until the code came back on in order to act. I gave them the permission to drive the car. They did, to no avail. I had to go pick the car up again... They detailed the car for me. But, as I was driving the car home the car started acting up again and the check engine light came on, flashed and then went off. I took the car back up there the following morning and they told me they would get to the car Monday. I just received a call from the same technician stating that "when the car turns off it clears everything...." ******** right? That they needed to drive the car further to see if they could get it to act up so that the technician could be present in the car with the diagnostic tool once it acted up. Because they believe it is a MAF sensor or an engine coil pack? Why are they so hesitant to fix my car? I am a college student and cant afford them to be driving my car so much without putting the gas back in it. Any ideas? It's my first new car and I have no idea what to do. Thanks everyone and sorry for the long read!

Ride on boys!