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Help! keep getting too lean codes 2091,0749,2095,0745

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Old 11-19-2011, 09:10 PM
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Ml350
Help! keep getting too lean codes 2091,0749,2095,0745
Already replaced MAF and then O2 sensor. What gives?
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Old 10-14-2016, 09:16 AM
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c300
Did you ever figure out what the cause was? Im getting the same codes on mines
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Old 10-14-2016, 09:57 AM
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nevermind i figured out that the air cleaner cover was not on all the way and unfiltered air was getting in
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Old 11-26-2019, 06:47 PM
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That will not set a fault code....We have had several MBZ's - with 272/273 Engines - that have been driven for months with the air filter housing totally removed (missing) and st no fault codes....
Last edited by Akbar Service; 11-26-2019 at 06:55 PM.
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