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I don't worry about it. As long as I have been coding, 9 months now, I always code my car, and I have coded probably 50 others, all with the car on and the engine fully running (EXCEPT if I am coding the DME module).
I have never had any issue with coding and excess noise, and I do not have to worry about proper voltage being maintained on the car, plus I get the added benefit of active HVAC.
IMHO there is nothing worse than inadequate voltage during coding, and it is a much greater threat than noise introduced by the engine.
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- 2011 535i M-Sport (Born 10/10) - AW/BLK/DW - /ZMP (w/ARS & AD) /ZPP /ZP2 (w/ZPS & ZPT) /ZCV (w/SCAD) /6FL /6VC
- 2006 530i (Born 10/05) - SG/BLK/DW - /ZPP /ZCW /NAV (Returned to Mothership 05/11)
- BMWCCA #446923
- flickrŪ
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