Ha! I nailed that part after about 6 months of daily driving the thing to work. From my experience, the Nord engine with ITBs seems to need a HUGE squirt of fuel to get started when cold. It exceeds the maximum pulswidth that the Megasquirt software can allow, so I cheated the software in other areas to get enough fuel in there when cold. Hot starts are much easier. But still, it's a compromise much like you'd make with carb jetting.The only real problems I've had with my aftermarket EFI conversions so far have been getting cold start/warmup right once the basic mapping has been done (snip)... Based on his comments, this is the sort of thing that George is probably still working on I'd guess.