I have a 93 325is and i am having engine problems. The car was running fine all day, and about 2 hours after i had been driving, i tried starting it. It turned over for about 1.5 seconds, and then shut off. I tried it numerous times, and it just keeps doing the same thing. I tried starting it and reving it up a little, it keeps the motor going if i rev it, but it backfired, and sounded horrible. When i was driving the car previously i didnt notice any problems, or hear anything. Does anyone know what the problem could be, or the first thing to look for. Thanks alot ~ Josh