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Discussion Starter · #1 ·
Hello everyone I have a 2005 325i sedan m54 engine that is throwing bank one and 2 lean codes I have a new fuel pump new fuel filter new disa new MAF sensor new spark plugs and new post cat o2 sensors and no vacuum leaks ( I have smoke tested it 100 times) it has a rough idle after I’ve been driving for 5 or more minutes I have a janky cold air intake that is probably a hot air intake but I can’t seem to get the codes to go away any help is appreciated
 
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