This just stated happening recently...I seem to be running rough when I was stopped at a red light so I turn the Air Cond off so I could hear the engine better and right away I noticed the car started sounding better...... Later on I turned the air back on but when I stop at a stop sign I notice it running rough again and then I noticed the low oil presuure light came on,,then the car died... I started it back up and quickly turned the Air Cond off.... I will try again and see if it start with the Air Cond on... Thx for helping..