GM Service Manual Online
For 1990-2009 cars only
  1. If the engine cranks but will not run or immediately stalls, refer to Engine Cranks but Does Not Run Engine Cranks but Does Not Run in order to determine if the failure is in the ignition system or the fuel system.
  2. If any DTCs are set for the electronic ignition, refer to Engine Controls.
  3. If a misfire is being experienced, refer to Base Engine Misfire Diagnosis (Table A) or Base Engine Misfire Diagnosis (Table B) .