Hey all, I need some help. While driving to the gym my car started spuddering then shut off while driving. So I coasted to the parking lot since I was about to pull in, finished pushing it into the parking spot. Engine turns but won't start. Left it there, next day though, starts right up. The fuel pump was turning on intermittently but it still started so I drove it to work where I could work on it off needed. End of the day comes in the heat and it won't start. Checked fuses, getting power to spark igniter sensors, but no spark. Four mechanics have looked at it and they can't figure it out. I keep hearing it a ground issue. Any suggestions?