I'm not an electrical guru…I actually hate that the electronics have become part of an engine swap…but it is, what it is.
Ok, whats obvious to me, you will not have luck finding a PCM for a 02 R/T Dakota with a 5.2 because the 5.2 was never available on the 02. That means that you're going to need the PCM for whatever model year the engine happens to be…then of course the rest of the truck might not be compatible…at least those things the PCM controls (which really shouldn't be much)
Sorry I'm not much help. As I said, I'm not fond of dealing with the electrical side of an engine swap.
Ed
Ok, whats obvious to me, you will not have luck finding a PCM for a 02 R/T Dakota with a 5.2 because the 5.2 was never available on the 02. That means that you're going to need the PCM for whatever model year the engine happens to be…then of course the rest of the truck might not be compatible…at least those things the PCM controls (which really shouldn't be much)
Sorry I'm not much help. As I said, I'm not fond of dealing with the electrical side of an engine swap.
Ed