I am working on a Mitsubishi FG25N with the nissan k25 engine. The engine idles poorly, and when I let off the accelerator it wants to die, and also when turning it lock to lock it wants to die, I don't have anyway to see any live data I believe there is a proprietary plug and software needed, and I am not getting any error codes on the dash. If anyone knows of any common problems or has any ideas it would be greatly appreciated.