Car runs then shuts off?

2007 BMW 335
150,000 MILES • 3.0L • 6 CYL • TURBO • 2WD • MANUAL
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JJWWIILL
I recently had my engine pulled out, I had to drop the pan to look for belt and I also swapped the head over because of a rounded injector bore. Now when I start the car it runs for a little the dies no matter how much gas I give it. If I unplug the crank sensor it will long crank but start and run pretty good.
Sep 29, 2025 at 7:12 AM
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BLACKOP555
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Any codes? Make sure its timed right. I would verify timing and vacuum leaks first.
Sep 29, 2025 at 5:57 PM
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STRAILER
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We need to run the codes to see which ones are stored to help us fix the problem, here is a guide to help us get started:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please upload pictures or videos in your response, it will help us see what is wrong.

Sep 30, 2025 at 10:02 AM
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