Circuit/System Verification
IMPORTANT:
Verify that the engine is in good mechanical condition before continuing with this diagnostic.
- Review the ignition system specifications and the spark plug inspection procedure to verify the following:
- The ignition coil/modules are correctly connected
- The proper firing order
- The proper spark plug type
- The proper spark plug gap and torque
Refer to Ignition System Specifications and Spark Plug Inspection .
- If the engine will start, then observe the scan tool Misfire Current Cylinder parameters. This will indicate the affected ignition coil/modules.