Coulthard finished fourth in race three on Saturday behind fellow flying Kiwi Shane van Gisbergen who claimed line honours.
However, Coulthard on Sunday was elevated to first by officials after eight big name drivers were excluded from race three results due to the breach.
The list of affected drivers read like a "who's who'' of the category - van Gisbergen, Lowndes, four-time champion Jamie Whincup, Bathurst winner Todd Kelly, Michael Caruso, Jonathan Webb, Scott Pye and Dean Fiore.
Officials said the drivers were punished for "an accidental setting of the ignition timing''.
Nissan driver Kelly said no advantage would have been gained by any of the eight drivers but acknowledged it was technically a breach.
"The actual breach is of no real significance whatsoever performance wise but it is a breach of the rules so I respect the action that they've taken,'' he said.
- AAP