96 cavelier car starts then dies ! think problem is in theft system light is flashing . dont want to go to Gm garage was told could be ign switch key cylinder bcm any easey fix? any info appreicated.

Do a google search for VATS or pass key and read up on it. Not so hard to bypass the key deal if you know any electronics. Buy a module on Ebay and bypass the whole system but that's taking a chance on some risky electronic gizmo.

I removed key lock cylinder sprayed break cleaner in tumblers then blew out with air compressor firgure had nothing to lose reinstalled in car it started right away been working fine for a week no more theft system light

I had that problem with my brothers 96 grand am. If you dont mind a theft light being on. Take the shrouds off, unplug the sensor that goes into the back of the cylinder, and remove the sensor itself (it held in by one screw). The car should start right up. At least it did for his. And has ever since.