Originally Posted by
GMC-2002-Dmax
The editor has most of what you need to make it rumble or hiss @ idle, with respect to, that IIRC there is 6 or 7 single bit values as well as a "idle vane position" only table and 15 or so "max vane pos" tables that are currently missing in the editor and have to be found in hex, identified and a CAX created to see/edit them in the editor.
Most of what you need is in the editor, some trucks will hiss @ idle and then switch to rumble when in reverse or in motion.
Good Luck