it's not that it throws a code. it's that my ecu resets itself so that little fine tuning it does as i drive is out the window basically. ecu's tune the fuel tables as you drive. i could be wrong i just know that most cars do it. i just haven't hit boost cut if i've been driving the car on and off all day. there's a noticeable difference with the way it runs if i don't disconnect the battery after i've been driving all day.

and my boost controller is my foot at the moment.