It will get a litttttttttle bit better as the ECU learns more about its new environment and you get things dialed in.
![Driving :driving:](https://board.marlincrawler.com/Smileys/marlin/driving.gif)
Depending on how much seat time you are putting in, it might take up to 1.5 - 2 weeks for the ECU to clear all the self-tests and eventually decide to throw a check engine light
or not.
Do you have access to an OBD-II scan tool?
BigMike