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I have a 2001 BMW 325ci with engine code P0171 and the engine runs rough

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I have a 2001 BMW 325ci with engine code P0171 and the engine runs rough

Vehicle: 2001 BMW 325ci

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This code is for a lean fuel mixture on bank 1. This can be caused by intake vacuum leaks or an issue with low fuel pressre. Since it is running rough I would start by checking for intake leaks.
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P0171 BMW - Mixture Control System Too Lean

Read more: https://www.autocodes.com/p0171_bmw.html

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