This morning on the way to work my vehical shut off while going down the road at about 45 i put it in nuteral tried to restart and eventully pulled off the road and it would still not start, it will turn over and crank away but not start. It will sometimes mis-fire when started i believe from the computer, we can turn the lights on and sometimes it will make it actually run better. If its started and is running rough i have to restart it till its right, which usually only takes once or twice but now it will not start at all what should i do to try and fix this? is it the computer? my local junkyard has the same year vehical so we can get whatever parts we need from them. any suggestions will be considered. Thanks, Jake