I have a 90 325I and I recently had to disconnect the airbag and remove the steering wheel and ever since then almost every time I start the car I have to push a small button under the dash on the far left way down by the hood release..the car would start then promptly die untill I push the button..it was like that for quite some time now the car just starts then dies regardlesss of the button..is this some sort of breaker or does it have something to do with the air bag??help..help