Hi, \n\nFor those of you reading I hope you can help me. \n\nI have just upgraded to DCC, I currently have a digitrax Zephyr. \n\nAs I have just finished wiring my layout, I have been testing all my engines, and found two that just don't want to work. \n\nBoth are Athearn RTR DCC quick plug ready. \n\n1st one is: HO RTR AMD103\/P42, Amtrak #13 \n\n2nd one is : HO RTR F59PHI, Coaster #3002 \n\nThey both have DH163D installed (Per the digitrax website). \n\nThe program track sees them, and addresses have been changed (Both 4 digit addresses). CV values are set on factory setup. When they are placed on the main line they do not want to run. \n\nBoth are set on 5 128 speed step mode (I have tried the others with no luck). \n\nAny ideas or hints?