12 13 ... Fault in fuel injection system
WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
Evaluation of ignition voltage peaks in response to sudden accelerator loads.
- Beginning of dying-out process is not much higher than ignition voltage peak. Ignition system is OK.
- Beginning of dying-out process is considerably higher than ignition voltage peak. Fault in injection system:
- lean mixture
- defective injection valve
- low compressions