Thread: JB4 Issues
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Mandrow7 Mandrow7 is offline
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Posts: 6
Join Date: Jun 2020
Car: 2011 BMW 550i XDrive
Default JB4 Issues - 06-24-2020, 08:11 PM

Have a 2011 550i XDrive, just installed JB4 and ******* dpís. Iím getting codes about running too lean which I assume is the *****, but I thought the JB4 auto-cleared codes? Also, getting drivetrain malfunction on stage 1 or 2. Just put new plugs, maybe a little better but same thing. Have coils on the way, jus tlooking to see if there s anything else to check or something in case coils dont fix it either?
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