Originally Posted by Fullsize4life
I never plugged in my cummins, Once it fired i would let it idle or about a min and then high idle it while i went and drank a cup of coffee. Not sure what i will do with my PSD i have this year. Cummins does not recommend letting them idle long with out high idling them as it does nothing to warm them up.
My PSD has the high Idle built in. About a minute after you start it, it goes into high idle until you touch the brake pedal.