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  1. E90/E91/E92/E93 (2006 - 2013)
    Hi there, In summary, test driving a '09 328i when it started raining near torrentially, which seemed fine as I slowed down for traction concerns with near an inch of water everywhere on road. All of a sudden, same throttle cruising in 6th at about 2100 rpm, the engine starts running horribly...
  2. E90/E91/E92/E93 (2006 - 2013)
    Getting a couple codes that I’ll throw a photo of in the thread. Car feels sluggish and keeps throwing me into map 4 (jb4). Replaced an 02 sensor and don’t know where I should be looking next. Anything helps. Thank you! Car is as follows. 08 335i -Jb4 Tune -Catless DP -dual cone intakes -ecs oil...
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