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As a BMW driver, you're probably familiar with the different signals and alerts that can pop up on your dashboard over time. In most cases, these indicators are simply reminding you that it's time for regular maintenance tasks like changing fluids, filters, and other car components. If you see code 29e7, it indicates a fuel adaptation issue, suggesting that your engine may be running too lean on gas or oxygen. To address this problem, you should inspect the fuel lines and oxygen sensors for any potential problems. If replacements are necessary, you can expect to pay anywhere from $45 to $150 for the parts.
Check for idle misfire on bank 1 by examining fault codes 0029E7 and 0029EF, using either the misfire count or smooth-running counter based on your diagnostic device. Conduct a smoke test on the air induction system to detect any air leaks.
The Fuel Adaptation Error (Running Lean) in the BMW for the code 29e7 from 2017.