12 13 Notes on checking ignition system
WARNING: This page is about a different car, the 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
Troubleshooting
- Fault in fuel injection system
- Spark plug faults
- Ignition coil faults
- Further fault patterns with evaluation
Oscillograms
- Normal oscillogram
- Oscillograms of ignition coils from different manufacturers
Check
- Secondary signal for stationary ignition distribution