Quote Originally Posted by honduh View Post
MODS feel free to direct me to the correct write-up thread and delete this one if needed. I'm having a hard time finding any info on this.


I am trying to change the 5th position on DSP5 tuning to make it hiss at idle.

I thought the tables I needed to change were Engine Operation > Turbo > Position
-I am editing 600-1200 RPMs and 0-20 MM3s


Client's truck has a goofy inline device connected to the OBD2 port and I'm not sure if it's disabling my changes I'm making with the tune. Any help is appreciated. TIA guys
The SOTF File or as you are referring to it as DSP5 is not 5 tunes, its one tune with a limiter value applied based on switch voltage.

You cannot make only one of the switch positions rumble or hiss and the others do the opposite.

Its not the way that particular setup works, you can pick one or the other for the tunes.