Cause of P0171 and p0172 code in bank 1

What is your question?

Recently bought a 2014 bmw x3 28i that is throwing the p0171 and p0172 in bank 1. Has a lack of power and noticeable exhaust residue. Have checked air filter and is new. We can’t seem to kind a clear answer online where to start looking for the problem. The car isn’t throwing any other codes.

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in Scottsburg IN

Jul 24, 2024

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Tuffy Tire & Auto Service Center - Grandview

4.7

(85)

2.39 mi

1524 W 5th Ave

Columbus, OH

Closed

Opens 8:00 AM Mon

Call