Asked Steve why my stock tune in SD ran like poop on cold start and this tune isn't.
Hi James,
There is a bit of an issue balancing cold start and cold air idle bypass, over time we learn more on how to adjust for that, its a combination of IAT comp, ECT comp and cold start cranking tables on some tunes its harder then others to get the balance just right between good fuel trims and good cold starting. Good cold starting requires "choke".
Hope that helps
