Well just about finished the motor swap into my 2005 3500 auto the motor that I swapped in is from a late 2004 truck with a manual tranny. I used the engine harness and ECM from the 05 being it was an auto everything but one small 2 wire plug just behind the fuel filter can aster the plug itself is grey with an orange end if that's any help anyways got it running today fired rite up checked codes and got a 2122 and 2127 and the pedal is completely dead any help would be awesome thais in advance