my 1987 bmw engine wont shut off on 1990 BMW 325i

i have repaced the ignation switch and the car still will not shut off the only way i can turn off the car is by pulling the coil wire.

by in Palmyra, VA on November 03, 2009
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2 answers
ANSWER by , November 03, 2009
Did you try diagnosing the igcniction module?
ANSWER by , August 06, 2010
check alternator (desconet alternator )