Let's back up. Is the vehicle's engine cranking over properly, but will not start (crank/ no start)? Is the anti-theft system you refer to the factory system or an add-on? If the factory system is engaged, the theft light in the dash will flash rapidly. A faulty crank position sensor will cause the coil packs not to fire. The ECM needs the input to determine when to fire.
Saturday, July 16th, 2011 AT 3:12 PM