I have looked at the diagrams for a while now and I do not think this is MOD is possible with the 03 4.7 as it does not have TMR Sense. I Think this other guy... if he actually did cut anything 1) cut something other than what he thought, causing another component to not function properly, then suffered from the placebo affect or 2) he did the impossible.
According to wiring diagrams it is not possible, because the item does not exist in the case of 2003 4.7's.
I will however still keep this on my list of "make it a point to..." things and will physically search for the wire on my connectors. I will search specifically for this Yellow/Dark Green wire that was supposedly cut from the bottom 38-pin connector. If I do find it, I will remove the wire and give a detailed write-up on the results (sometimes around Easter).
Not trying to be a D*ck here, I just don't like it when incorrect information is given to people who are after accurate information about taking care of their vehicles.