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      02-14-2013, 01:43 PM   #573
New Member

Drives: E90 335i
Join Date: Sep 2012
Location: Wisconsin

iTrader: (0)

I know for a fact that my tune (PROcede Rev2) overrides the vacuum and keeps the fumeflap open at all times. I'm betting other tunes do the same also (COBB, JB, etc.). This DOES cause a code to be thrown (12140 Exhaust fumeflap, input signal), but it is a very common code that everyone that is running a tune deals with. I'm betting unplugging the vacuum actuator cable in the trunk will throw this exact same code. I also don't see any major problems coming from this at all.