fuel mix lean?

2013 BMW X3
1,700,000 MILES • 2.0L • 4 CYL • TURBO • 4WD • AUTOMATIC
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ASHOK SAINI
  • MEMBER
  • 32 POSTS
I have sealed the hoses no leak but cannot figure out this error.
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Apr 20, 2023 at 1:28 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
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This is usually caused by one of two things, either the fuel filter is clogged up or the MAF needs to be replaced.

Here is a guide to help as well and I have added the filter and sensor locations in the diagrams below:

https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers

Clear the codes once the job is complete to recheck the system. Check out the images (below). Please let us know what happens.


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Apr 21, 2023 at 12:31 PM
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