[BNC0127]

Hi Guys, I was hoping someone might be able to help with my problem.

I have a 2015 BRZ limited automatic that is only 3 months old and has been at the dealership for 3 weeks now and they have no idea what is causing it. The car drives fine, but after the engine gets hot and I put in park or neutral the idle drops from 800 to 500 rpm the engine shakes and then jumps to 1000, then repeats. The car will keep repeating this cycle until I turn off the car and let it cool down. The car idles fine if I put it in drive or reverse. The car is completely stock under the hood. The dealership has already changed the MAF sensor, throttler body, readjusted the valves, and have even tried draining out the gas and filling it with new gas. So my guess is they are resorting to changing out the gas they are running out of ideas. I know previous years of this car had a problem with idle hunting and it was fixed with a re-flash of the ECU, but the service manger said there computer wont let them re-flash mine cause it should have already been built with the re-flash applied. My car also never through up a CEL code or any other issue just the idle hunting.

I've already talked to Subaru of America's main office and the case manager there about replacing my car, but they seem to be jerking me around in an attempt to bide more time. Ideally I just want my car fixed instead of having to go through the whole process of switching out the car.

Any help or suggestions you guys can give would be greatly appreciated.

Thanks in advance