Need help car turns off

[GRPRX1]

I have a 05 G35 sedan, with 80k, car has run great up until now, for some reason if i try to make a turn the car seem's to want to shut off, the other day I did a u turn and it did shut off, luckly no other car was coming. I cannot figure out what may be causing this, all I can think of, it might be spark plugs or fuel pump, but I have always put the 93 octane on it and usually, plugs on these cars do not need to be replaced till about 100k, anyway if anybody has an idea or something I would greatly appreciate the input.

P.S
car is not all wheel drive or stick.

[joe603]

Take it to the dealer to have them put a code reader on it...were you turning slow or fast? What about at idle, how does it sound?