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Fuel Injector Issues: How to Troubleshoot and Fix

I have been experiencing some issues with my BMW 4 Series fuel injector. The engine seems to be misfiring and there is a noticeable decrease in power. Can someone guide me on how to troubleshoot and fix this problem?

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From my experience, this could be due to a clogged or dirty fuel injector. I suggest trying a fuel injector cleaner first before replacing the entire injector. It could save you a lot of money.

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