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      08-01-2015, 11:25 AM   #10
gclions
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Drives: 2011 550i
Join Date: Feb 2014
Location: Chesapeake, VA

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It will throw a code, battery connected at least, when you disconnect the TMAP sensors on the intercoolers. I remove the hardware and use a BT cable and associated software to scan for codes and clear them before a visit to the dealer. I believe this makes it undetectable, as once the code is gone it's gone.
Appreciate 0