hello everyone so last night on the way home I was at a stop light for a few minutes, my 199.5 qx4 just shut off random had to restart no problems after that. I have had this happen another time about a year ago, anyone have any ideas? also sometimes when trying to start in the morning it will run for a second then shut off have to crank the engine over again to restart. new battery, dizzy.plugs.etc any ideas? thanks everyone