12 13 Notes on checking ignition system: Troubleshooting

• Fault in fuel injection system, refer to 12 13... Fault in fuel injection system 
• Spark plug faults, refer to 12 13... Spark-Plug Faults 
• Ignition coil faults, refer to 12 13... Ignition Coil Faults 
• Further fault patterns with evaluation, refer to 12 13... Further fault patterns with evaluation 
• Additional fault notes for troubleshooting

Oscillograms

• Normal oscillogram, refer to 12 13... Normal oscillogram (N42, N62) 
• Oscillograms of ignition coils from different manufacturers

Check

• Secondary signal for stationary ignition distribution, refer to 12 13... Checking secondary signal for stationary ignition distribution