idling high

[JD_MILLS]

Truck has started idling around 800 rpm constantly. Not sure what could be causing it. Dpf is deleted with sct tuner and tunes from innovative diesel. Tried returning to stock last night and it did no good loaded a different tune and it still hasn't changed. Any help is appreciated.

 

[SEABEE08FX4]

How old are your tunes? Some of the older tunes required the sensors to still be hooked up electronically or else a high idle condition would happen. If you have older tunes requiring the sensors and one of the sensors went bad that could be the cause.