TCM have power? I know when we do swaps, if the TCM power is not moved to the correct location there is a start/die issue until the TCM is powered up. Just a late night thought while my brain isn't 100%
Somebody messing with your high idle lately?
PTO Fast Idle Option Pre set
PTO Max. Engine Speed 2200* RPM (max 3100)
PTO Stand by Speed 800-850* RPM (max 1300)
PTO Set Speed 1250* RPM (max PTO Max. Engine Speed)
PTO Resume Speed 1700* RPM (max PTO Max. Engine Speed)
PTO Max. Engage Speed 1000* RPM
PTO Engine Shutdown No
PTO Engage Relay No