PCM Code P0335 CS sensor no help
 

Replaced Crankshaft sensors due to PCM code PO335. 2000 deville DTS. Sensors did not help. Engine Occasionally shuts off at idle and recieve code. I need a Northstar tech to tell what else I need to troubleshoot in the Crank sensor circuit. Or, what else would cause to loose the voltage in this circuit. I would appreciate any --all help. Thanks very much.
Leon