I have noticed this since day 1 of installing nistune, basically REGARDLESS of engine temperature, when you start the car after turning it off, it will run VERY rich (mid to high 10 afr's) for about 30 seconds to a minute, and then it will slowly return back to normal and read what the fuel table tells it to read.
I have concluded that its a part in the ecu's code to warm up the catalysts, in which I do not have or care about. How can I make this stop doing this?
Ive messed with ALL the cold start settings and adjustments to no avail. thanks.
![Embarassed :oops:](./images/smilies/icon_redface.gif)