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Old 05-26-2019, 10:04 PM
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crystalworks crystalworks is offline
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^ What he said. With any post 2001 BMW (varies by chassis, but generally 2001) you are going to need a code reader that can give you the specific BMW trouble code. A generic P-code is not going to do the job unfortunately. I use, and suggest, the Foxwell NT520 Pro. It's about $150. Can do 95% of anything even a tech would need.

A generic misfire code isn't going to help a bunch with diagnosing the issue. On that cylinder it could be the coil, plug, injector, carbon coked valve, worn cam lobe, etc. Some of those failures are more common than others, but as Ard was hinting at, shotgunning parts is not the best approach usually.
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