Quote:
Originally Posted by Murkybenz
P0171 system too lean bank one… probably an air leak after the maf sensor in the trunking somewhere… engines getting unmetered air … the 02 sensors picking up on it and the maf sensor is registering it.
Bank one if I am correct is from the front of vehicle the cylinders on the left .. numbers 1,2,3 with no 1 at the front of engine.
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OM642 cylinder numbering pattern is:
3 6
2 5
1 4
(Front)
So bank 1 is the right side of the vehicle (passenger side in the US).
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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)
both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)
1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
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