Car was stumbling very badly this morning. she was at the bank today and it died. She got back to work, and our friend told her to disconnect the battery to reset the computer. She did that, and the check engine light went off. We got halfway down the driveway, and the car died completely. Restart, in neutral, has to have the gas to the floor for it to even stay on. The car is sputtering, almost like its not using all of its cylinders. Our friend thinks it could have somehow fouled out the spark plugs??