Hi,
I have a problem with my automatic 2010 G37x coupe. When I floor it, the car is really slow and the rpm doesn't go more than 5000 rpm and it doesn't shift up when I'm in D. A strange noise occures after reaching 5k rpm. When i drive normally everything seems alright. I have the following codes : P0102, P0106 and P0456. I've monitored with my OBD2 the values of the MAFs and the MAP sensors and the values are normal at idle and when I rev (in neutral). Any idea what the issue could be ? Thanks. Here is a video of the issue

 

Have you done anything to look at things so far? P0102 and P0106 are intake related, have you confirmed everything is attached properly with nothing disconnected or broken?

 

P0102 is a MAF sensor or wiring issue. You can look up how to clean them, its fairly simple and may solve the issue.
When I had a wiring problem with my MAF sensor, it would go into limp mode just as you described in your post.

P0456 could be your fuel cap is loose or the seal is damaged.

I can't find P0106 in the FSM.