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Old 11-12-2012, 10:42 AM
tomeller tomeller is offline
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Location: Cambridgeshire, UK
Join Date: Oct 2012
Posts: 9
Mein Auto: F30 320d
Originally Posted by shawnsheridan View Post
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.
I would feel safer coding with the engine running as the DRL's come on with the ignition, but I'm not sure what is part of the DME module. Would the auto start/stop be in there?