View Single Post
      12-31-2012, 11:23 PM   #7

Drives: '09 335I Cpe
Join Date: Sep 2008
Location: Sunny Socal

Posts: 1,202
iTrader: (4)

Originally Posted by BMWM.D. View Post
more like a 350i

But yeah, the noise you were hearing is the fuel pump running while the DME was programming. Totally normal. In the future, I'd recommend turning off the daytime running lights (or connecting a battery charger) before flashing the DME. It's best to keep the system voltage in the 14's if you can.
why does the fuel pump need to run when the car is programming? does the DME feed on fuel???
2009 335i 6MT - M-Sport - All stock