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Posts: 215
Join Date: Sep 2017
Car: 2013 335i xDrive Coupe
Default 10-07-2020, 01:59 PM

Everything seemed perfect for just short of a month and then it went haywire again. Started car after two stops of a few minutes or less and it sputtered and died twice, "engine malfunction". Bogged on starting at least once. Codes 2C58 and 2C6F. (Boost pressure build-up blocked, Boost pressure sensor short to B+). Next day no malfunction or roughness, but steering controls seem to randomly stop and start working. First they didn't like 3x, then they did 3x, then didn't 3x.

I'm pretty convinced the redone grounds are mated to the metal of the body; is that not enough for a perfect ground? I welcome ideas why things would be fine for a month, then suddenly and consistently bad.
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