12 13 Notes on checking ignition system
Troubleshooting:
- Fault in fuel injection system.
- Spark plug faults.
- Ignition coil faults.
- Further fault patterns with evaluation.
- Additional fault notes for troubleshooting.
Oscillograms:
- Normal oscillogram. Refer to 12 13 ... NORMAL OSCILLOGRAM (M, S, W ENGINES ONLY) .
- Oscillograms of ignition coils from different manufacturers.
Check:
- Secondary signal for stationary ignition distribution.