Alright the motor is an '89 M30B35. It ran fine yesterday. I go to start it today, and it is now missing on 1,3, and 4. Sometimes it won't even fire at all on 1 and 4. Anyone know what this could possibly be? Plugs are not fouling out either. So, it seems as though it could be a problem with the computer, but I'm not sure. The car has new plugs, wires, rotor, and cap. I also have a TMS/J. Conforti chip, and it hasn't been run for more than a week. The motor is in my '84 318i, but I'm not sure if that really is relevant or not. I don't believe it is since it was running fine yesterday. Help please.