my car has been running great with no problems till about 3 days ago.. i was washing my car drove it around the block to dry it off.. parked it in my garage.. dried it off all the way and waxed it.. when i was all done and started my car and started pulling it out onto the driveway my engine turns off and im coasting down my driveway.. it cranks over no problem.. the battery is new and good.. it started up right away.. it would just shut off if im in neutral or right when im at a complete stop.. the next day it takes about 10 cranks for it to start.. then i drive it around.. and when i come to a stop the motor turns off again.. (it doesnt turn off all the time when i stop.. its very random) and yesterday i try to start it and now it doesnt want to fire up.. i replaced the fuel pump.. and today it started up.. but just turns off randomly at some stops.. hopefully im kinda making sense.. any help would be great.. what could it be!?