It's supposed to be at 0.3mm or 0.8mm. When I checked mine, it was actually at 0.1mm. We had initially gone in thinking we were going to change it from 0.3mm to 0.8mm, but seeing at it was only at 0.1mm we elected to set it to 0.3mm and see what happened. It didn't fix it. We have subsequently discussed setting it at 0.8mm, but I discovered a loosely seated CCV valve on the driver's side. I reseated that and give it some time. That didn't fix it either. So, recently we debated going back to modifying 0.3mm to 0.8mm. There are drawbacks to the 0.8mm setting - crap mileage, throttle hesitation off the line as it switches from the software fix to the normal mapping. There may be others, but I decided to leave it as warmer days are ahead and this only affects some cold starts, not all. I have my wife sorted so that if the blinking check engine light is on and it feels like a bucking bronco, she'll restart it. So far that has been working well
