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Norman2 · 09-05-2015, 11:35 AM

Hi, After 120,000 miles my check engine light came on. Checked with OBD
code reader and diagnostics states Lean air fuel mixture on bank No.2. Would
like to know if anyone knows what this means. Should I replace the mass
airflow sensor or is it something else? Car is 2005 BMW X3 2.5i. Regards
Norman2

09-05-2015, 11:35 AM	#1
Norman2 Registered 4 Rep 3 Posts Drives: BMW X3 Black Join Date: May 2010 Location: Brevard, NC iTrader: (0)	Check engine light on Hi, After 120,000 miles my check engine light came on. Checked with OBD code reader and diagnostics states Lean air fuel mixture on bank No.2. Would like to know if anyone knows what this means. Should I replace the mass airflow sensor or is it something else? Car is 2005 BMW X3 2.5i. Regards Norman2 Last edited by Norman2; 09-05-2015 at 11:46 AM..
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