2004 Crossfire n/a keeps dying!! it will run for anywhere from 5-15 minutes then die and i have to wait for like 5 minutes to try starting it. it acts like there is no spark, it just cranks over! help please! last week it wouldnt start at all and we thought it was the FFS so we reset it, then it started right up. So then we just changed the oil and put 8qt. in. Now when im driving down the road it will just die, or even at idle it will die. Sometimes it wont even die though it will run fine for long periods of time. Confused!