Our L6 software will cold start and drive perfectly when cold, its nothing at all to do with the ecus ability to add fuel and increse idle when its cold.

lean on cold start lol. id be amazed if you find a cossie cold start at less than 6% co even if the global mod is -30, and it certainly wont lean hunt at that. and the fact remains it doesnt hunt when its warm, so it cant be that lean lol.