DodgeChallenger

Just to let you all know that I completed the install on my high idle kit. Used the Cummins wire. Was a bear to get all the way into the plug but I used a sharpened paperclip unravelled and 'dug' it into the wire beside the ECU plug pin and forced it down to the bottom of the plug. Doesn't want to come out now. Pin 22 on the rear 50 pin plug is the one. Mine is a 2007 5.9 so that applies if you have the ECU on the motor with the fore and aft plug.
Something else that I would recommend is to solder and insulate about 3ft of wire on the Cummins pigtail before installing. Works great at 1100 - 1500 in 100 RPM increments. I have the Jr on so no need to go begging at the Mopar dealer to activate that feature.