BMW 3-Series (E90 E92) Forum - View Single Post - N55 Rough Idle W/ catless dp after JB4 ISO?

SRT14PimPin07 · 02-04-2013, 07:38 PM

I decided to try removing the JB4 completely, and see if the problem continues. If the problem stops then I can confirm the JB4 was causing it.

02-04-2013, 07:38 PM	#25
SRT14PimPin07 Major 78 Rep 1,035 Posts Drives: X5 Join Date: Jun 2009 Location: Los Angeles iTrader: (4)	I decided to try removing the JB4 completely, and see if the problem continues. If the problem stops then I can confirm the JB4 was causing it. __________________ 2011 Alpine White E92 335i M-Sport N55 Engine
	Appreciate 0 Quote