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How to Troubleshoot Engine Misfires

I have a 2008 BMW 328i and it has been misfiring while idling. What are some possible causes and troubleshooting steps I can take to fix this issue?

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Answers (2)

B

One possible cause of engine misfires in BMW vehicles can be a faulty ignition coil. You can check this by swapping the ignition coils between cylinders and see if the misfire follows the coil or stays in the same cylinder.

L

Another common cause is a clogged fuel injector. You can try using a fuel injector cleaner to see if that helps improve the misfire.

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