ok.. so heres the skinny.. i replaced the cam sensor.. now sometimes like i will run to the store.. come out and it will not crank.. wait a bit. and it fires up.. this morning coming to work, it dies right before my office driveway.. so me and someone else pushes it into the parking lot... i go back out in like 10 mins fires right up.. oh also i tried and tried to crank it after it went dead.. nothing. any ideas???