What Causes Engine Knock and Misfire in BMW?

1 Answers
Hubert
07/30/25 8:52am
The specific causes of engine knock and misfire in BMW are as follows: Causes of misfire: Issues with spark plugs, such as clogging or damage; problems with ignition wires; faulty ignition coils; problems with fuel injectors, including clogging or low voltage causing loss of injector data in the DME; ignition coils consist of primary coil, secondary coil, magnetic core, switching transistor, and other auxiliary components; issues with the air-fuel mixture; problems with cylinder pressure. Types of misfire: Engine misfire can be broadly divided into two types: complete misfire, where no combustion occurs, and partial misfire, where combustion is unstable.
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