Electronic Ignition (EI) System Diagnosis

IMPORTANT: Always start the diagnosis with the Powertrain On-Board Diagnostic (OBD) System Check. This will reduce the diagnostic time and prevent unnecessary parts replacement.

For additional information, refer to the following procedures:
^ Ignition System Check Component Tests and General Diagnostics
^ DTC P0325 Knock Sensor (KS) Circuit Bank 1 P0325
^ DTC P0330 Knock Sensor (KS) Circuit Bank 2 P0330
^ Spark Plug Visual Diagnosis Testing and Inspection