From what I understand the problem is the TIPM (I think that is the right name), it sends some specific messages on the CAN bus to the ECM that of course aren't there on an early chassis.
What is a TIPM ? The throttle position sensor ?
Whatever it is, its not there at all on my FERD ! :laughs:
TIPM: Totally Integrated Power Module. May or may not need it for your 06 ECM swap, if doing a 6.7L swap it is a must have if you want it to run off of 6.7L electronics