id be looking at stuff like bad connections at the battery plus make sure it is has a good charge and the big fuse by the battery is clean, i just tracked down a weird problem on a friends 87 325i, it would die at almost the same place everyday and if he poped the clutch it would restart usually but not off the starter, long story short it finally ****ed up for me and the alternator brushes were gone and the battery had a bad cell, the alternator was the straw that broke the camels back, it would work just enough to recover from starting up then the car would be running off the battery till there was not enough power to run the injection system
all america wants is cold beer warm cat and a place to take a poop with a door on it