my mechanic is doing the swap for me. its a 99 M3. he finished everything and went to start it and it started then shut off after 2 sec. the car starts but shuts off after 2 sec. what is the problem? is it the clearing of the computer? (not sure if he did that) also, my key is new, someone told me there is a trick taht you do to program the key to your computer? (not sure if that is true) what can it be? its starts then shuts off after 2 sec. is it some sort of anti-theft?
please help
thanks
please help
thanks

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