Quote:
Originally Posted by etr2016
Anyone ever try any injector cleaner? Not sure if that actually works.
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I use injector cleaner because BMW strongly recommends it and from my research in direct injection. Since the injector is in the chamber it's important to use it to keep clean. My car also runs poorly, although not that bad, after sitting some time. That is more than a little bad. My car did something like that when high pressure fuel pump failed. It wasn't able to keep idle but if it goes away then there is enough fuel pressure so that wouldn't be it. It sounds like a vacuum leak of some type but just speculating. Let us know what you find!