I have a 2002 BMW 325i with a trouble code P0491. I need help
Hi there
This code is for an issue with the mass air flow sensor. The computer isn't happy with what it's seeing for a reading. This could be caused by vacuum leaks or a problem with the maf sensor itself. It's also possible there is an issue with the front O2 sensor providing the wrong info.
P0491 BMW - Mass Air Flow Sensor Low Flow Limit Detected Bank 1 Read more: https://www.autocodes.com/p0491_bmw.html
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