What is required in order to switch my computer from NGC to jtec

[Nunie94]

So I put a 03 4.7 in my 05 truck and it’s not starting. I’m thinking this 03 engine is jtec I have to verify still but if it is what would it take to swap the computer systems. From my research I know I need the pcm and tcm and the harness from the engine and transmission. is there any more I would have to change cause I really don’t want to tear the engine down

 

[Mister Luck]

It might be 04 is a MAP instead of throttle position for AF
I’m not positive but other Chrysler models changed between those years

 

[Brandon-w]

Carb it? Lol!

 

[Mister Luck]

Depending on where you live in your state to register your truck…
if they have mandatory vehicle testing you may need to use the same year or newer emissions devices including PCM’s