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2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums Regional Forums USA - California Check engine code-running lean
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      05-15-2019, 09:26 PM   #1
Camiam415
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Check engine code-running lean

Been having such a tuff time getting this code cleared so I can pass smog. First mechanic did a smoke test, ended up getting a new manifold. Then it came right back on and he’s saying need all new fuel injectors. Weird part is at the smog place the code read, running lean, bank 1. Which made me think it’s an o2 sensor? Any help would be so greatly appreciated. Estimate on the injectors with labor was around 1600, which is what I just paid for the manifold and service that was done. Thank you
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      05-16-2019, 10:05 PM   #2
NinetyEight740
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What kind of car is this? Unlikely it’s the injectors, usually failed injectors will fail open and you’ll get rich faults, misfiring, etc.
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      05-17-2019, 08:57 PM   #3
Camiam415
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It’s a 2010 535
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      06-08-2019, 06:34 AM   #4
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Have you gotten this sorted out yet?
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